Agree. I did a 300 mile round trip last weekend but with no SC for 30 miles. In theory with a full battery I could have done it without charging, but that would have meant driving at 40-50mph the whole way with no heat in temperatures of 6-7C. I ended up sitting on a charger in a supermarket for 3 hours to get 65 miles more range.
It is not driving 300 -400 miles in one go that matters, it is return trips to remote places with crappy charging infrastructure where an extra 100 miles would come in handy. I used to get 800 miles out of a tank of diesel in my Ford SMax whatever the temperature and could be as toasty as I wanted without affecting the range. Don't get me wrong, I love my M3LRAWD, but just occasionally wish it went a bit further or there was overnight charging at every destination.
When traveling for group events I've started booking Airbnb for everyone instead of multiple hotel rooms. This way I can still take the car with the wife but the home is going to have dryer outlet and I've made a 50ft or maybe it was 75ft extension cord so I can pretty much run the cord where ever. It sucks having to slow down below the speed limit just to have enough range to get somewhere out of the way and make it back to the main roads. Last trip we only had to sit for 2 hours so it wasn't the end of the world but yea, 400+ miles of range would make those trips amazing.