That really depends. Like, if Opus can't make it through a full work week then at least for Opus the unlimited is pretty darn fake even if 95% of people are under that.

I'm reminded of online storage plans with various levels of "unlimited" messaging around them that can't even hold a single medium to large hard drive of data. Very few users hit that, most of whom don't even have a hard drive they regularly use, but it means they shouldn't be going anywhere near the word "unlimited".