Which home charging point?

I mentioned above we had a dual 22kw ProjectEV charger installed at work, they were quick and helpful to answer a couple of queries we had prior to buying it.
Once installed we had reason to get assistance from them and they were again very quick to sort out what we needed. (Our electrical supply wasn't good enough to supply full load initially, so they carried an over the air update to flash a special firmware that limits the unut to half power till we got the cables upgraded later). While it doesn't account for everyone's experience, I can't fault them.

Ohmes are just rebranded units from china too,

You're applying your own experience, and ignoring the wider constraints.

People aren't charging for 12 hours. Ideally, the majority of charging will be between 10pm and 5am because that's when grid demand is lowest. Anyone charging at 6-7pm is often using highest cost (and carbon) energy from gas STOR plants. It's entirely possible that different houses on the same street will have different low-rate charging windows to balance the load on the local infrastructure. So again, having that 7kW charging gets the energy in.

And this conversation is about dual-head chargers, which are most unnecessary for majority of households because, as you said, most people aren't doing 100+ mile days in both household cars. So having one car charged each night is fine, and that might be only in a 4hr cheap charging window (about 25kWh delivered at 7kW).

Then there's the other scenarios where perhaps you've forgotten to plug in or had a failed scheduled charge, and need as much at 7kW as possible in that hour between waking up and leaving!

7kW/32A isn't a big deal at the moment, but I'm sure in future as we move to more electrical heating (and hot water) we'll see more and more load management in the household. Which is also where a 3-5kW home battery can help balance things, but personally I'd rather see better V2G implementation (and another reason why I'm in no rush to update my home charger).

Yeah all good points, but I'm not ignoring anything - I'm fully aware of what you're saying. I just like to try to open people's minds to the possibility that they may not necessarily need the fastest charge rate possible, thereby maybe saving people some money by not over-speccing their installation. There's still a general received wisdom out there that EVs have worryingly short range and worryingly long charge times, and I'm just trying to add to the sum of knowledge and hopefully help open people's minds a bit and overcome some of the scare-mongering that exists around EVs.

We were in a similar position with 2 EVs that were being used on a daily basis and with occasional long drives this meant that we needed to be able to easily charge both cars at the same time. No-one wants to see me strutting around on the drive in my dressing gown at 02:00 to swap cars on a single charger.

I looked at the dual chargers and we nearly went for a CTEK Chargestorm Connected 2 https://www.ctek.com/uk/ev-charging/chargestorm-connected-2 but decided instead to get 2 Zappi V2 installed instead. We already had a single charger installed so one was a straight replacement for that and the other went on a post elsewhere on the drive. I went for the untethered versions and bought 2 10m charging cables so that we (my wife) could park as badly as we liked and still have plenty of cable to reach the charge port on the car. Many of the tethered versions are only 5m long so a little more care is required when parking!

In my mind there are a number of advantages to having two chargers as opposed to a dual one. The choice is much larger so if there are particular features or styles that you're after then you're more likely to find a charger to suit. You can be more flexilble where you install the chargers as it doesn't have to be in a single point that allows you to reach both EVs at once. If one of the chargers goes bang (think Rolec...) then you'll have one still up and running whilst the broken one is being repaired. The Zappis talk to each other and balance the load as required so if you're reaching your load limit of 100A then the chargers will throttle back accordingly. We're on Octopus Intelligent and I've set timers for pretty much everything to come on when the price drops (two dishwashers, tumble dryer, immersion heater, 2 chargers @ 7.4kW each) the max load that I've seen is about 84A so I wouldn't worry too much about exceeding 100A. As I understand it domestic fuses are 'slow burners' so even if you have a brief peak above your max then there should be plenty of time for the chargers to throttle back the output accordingly. This would only be required if you decided to dry your clothes, cook a roast and have a shower in your electric shower at exactly the same time as your cars start charging.

I'd definitely go down the route of having two chargers. It did cost more up front but it's been totally convenient and we've not had any problems so far.