I have plugged my car into a regular 120V outlet and charged it to 100% before with zero problems. It just takes a very very long time, something like 10 days of continuous charging if I recall correctly. In fact, I don’t even have a 14-50 installed in my house and I just plug the car in every night to get about 20-30 miles of range added which is enough to keep me even on a regular day where I just drive to work and then drive home. I also have minimal problems with battery leak.
Not every report is doom and gloom