Probably correct, however from a user perspective it’s much more convenient to charge when parked overnight or at work. Installing an ordinary AC charger is quite cheap, and the goal should be to have lots of these, to make EVs more practical then fossil fuel cars.
From what I've seen on current hydrogen fuelling stations having the capacity to actually refuel a significant amount of cars are limited (because tanks have to be repressurised), if you add electrolysis to this I imagine the fuelling rate is even more limited.
Hard to say. Their hydrogen efforts seem half-assed at best; so maybe it is just management not yet convinced BEV will work, and assume hydrogen at some point will be good enough so they want to have some experience with it.
Most likely there is internal company politics in many of these car companies which makes it hard to convert to BEV development, it will mean many people losing their jobs, factories closing, etc.
Or synthetically generated fuels (eg audi e-diesel, which is a diesel, but I think a petrol equivalent can be generated), which can be done today, but are very costly for general use. I don't think the cost of fuel for a classic car will be a huge issue even if it is very high (10x of todays cost).
With regards to weight - hydrogen tanks are heavy, even if the fuel is light. The tanks on a Toyota Mirai weight 87.5kg (193 lbs). In addition you need the fuel cell, piping, more wiring.. The actual weight advantage is not as great as it might seem.
I see people talking about refuellig time of hydrogen beein an advantage. Although most videoes I see on youtube seem to use ~10ish minutes - and it depends if the pumps has the correct pressure). Recharging an electric car is usually done in a few seconds of active time (plugging in the cable when you park), only if you exhaust the range during one trip you have to wait for recharging.