Two points of contention:
1) After putting over 40k+ miles on various bikes, I never once wished there was a self balancing feature to make it stand up on its own. At a stop light; I put my foot down; at a really long stop light, I put the kickstand down.
If the self balancing feature can function as form of driver aid. Meaning you declarivity tell the bike "I want this line with this apex"; then the bike will follow through with it's active systems. That would be wild.
2) The device right behind the rider gives me goosebumps. In a crash; seems like a great way to break your back and be pinned in the bike.
Background data:MechE background. Owned and crashed high CC several motorcycles. I'm doing totally fine healthwise; just really lucky.