Energy released isn’t really a useful measure though is it? It’s about energy that’s used. You are actually helping to demonstrate the case for an EV, 750kw to travel <500miles is monstrously inefficient when an ev will do the same distance on circa 20-25% of that.
The argument “you have to burn it somewhere” is also far too simplistic. You need to consider the “well to wheel” pollution and emissions to decide which is better in terms of emissions. Wheel to well, a leaf emits around 40-50g/km, a golf blue motion, around 150, if you start comparing performance cars, the difference is laughable.
The Convenience question is also subjective. Today I spent nearly 20mins at Tesco to get my 35l of unleaded. Why? Because every pump had 4 morons who all wanted 5l of petrol plus a newspaper and whatever other cr@p the shop sells. Had I had an ev, I would have got home, turned the engine off, pushed a button on the dash to open the charge flap (same as filling fossil car) got out, plugged in a cable and gone in the house. Additional time, maybe 10-15s, or 70-105s per week.
It comes back again to a question of what is actually required. The ability to take on 750kwh energy in 5mins is all nice n impressive, just totally unnecessary for 99% of the time, or 100% with a bit of casual thought.