Indeed. The people who prefer PF2e over 5e really prefer PF2e. They sing its praises loudly and often. For them, it's the far superior game system.
Now, the number of people who feel that way is rather smaller than the ones who enjoy a simple and robust system like 5e. You only have to look at the relative popularity of 5e and PF2e to see that. But as is usually the case when there's a small but significant segment that feels ill-served by the market leader, when an alternative arrives that's aimed more at their tastes they become fiercely loyal to it. And that loyalty translates into sales.
Do I begrudge the PF2e enjoyers their system? Not at all. I'm glad they have something that makes them happy. Do I wish they maybe had a bit more perspective, and recognized that PF2e is a niche taste and not just an objectively superior product to 5e? Yeah, I kind of do. Their proselytizing can be a bit tiresome. But that's hardly a new thing in the geek sphere. We're always fighting over which game system is better, or if you should be watching Star Trek or Babylon 5, or anime subs vs anime dubs, or something.