Lyxen
Great Old One
5E is pretty basic as it is relative to prior editions. I can't imagine people playing a simplified version of 5E for more than a few sessions before they move on to the full ruleset.
I completely agree. Yes, there are a few additional rules in 5e compared to basic, but who would play a game without things as simple as skills, or with as few options in this day and age ? I would be interested to know about the population playing OSR games, not that they are bad games, but I suspect it's mostly people with actual nostalgia.