I have no idea where your data is coming from, and doesn't match my tesla or non-tesla experience, but this actually would change nothing even if true.
You see constant EV road trip comparison videos and consistently see how bad EV chargers hamper the non-tesla cars, while the tesla chargers are consistently reliable. Go look around in the news and more.
I don't see either?
I also road trip quite often, and have road trip'd in a lot of places of the country in my EV, and again, my experience doesn't match this at all.
Maybe 5-6 years ago, it was true, but it's definitely not true anymore.
I can't even remember the last time i hit a non-working non-tesla charger on a road trip or locally