If MS were so serious about this, they would have done it long time ago.That's easy for someone to say on a forum, but Microsoft isn't going to take that attitude. That was evident when they reversed course on their attempted XLG price hike. So whether or not guys like @FeldMonster are the "target consumer" or not, he is still a consumer and part of a significant revenue stream for Microsoft. I don't think Microsoft can be heavy handed with this and force XLG folks to convert to Game Pass Ultimate.
Xbox live gold was testing the waters.