I disagree! I don't think you understand the parasitic load factor on new cars. It's not the battery at fault.The 12 volt accessory battery is problematic in all modern automobiles whether electric, hybrid or piston. The Bolt is no exception. A modern car parked at the airport or elsewhere for days at a time will experience 12 volt battery discharge due to paracidic loads.
It's the lack of USE! That's it. It's that simple. Don't blame the battery.
Control modules, radios, and other electrical components require KAM power on all cars. Like I said before,
Drive it or charge it. Those are you 2 choices. Nothing else is going to magically fix it.
The Bolt's system will work just fine as is. Lack of use will shorten the 12V batteries life, unless you supplement it.
Automakers do a fine job and the Bolt is proof. You just can't please 100% of the people, 100%.
Instead of condemning all cars, buy a simple smart charger and use it!