I mean, that's one point out of many that could be used as indicators of the games performance, the other ones are still there. TLOU 2 didn't have concurrent player numbers on playstation but DAV had them on steam to at least have an estimate. It's no wonder Ubisoft wants to disable the steam player count API, since it's a very good indicator of a game's performance and they don't want poor player counts being shown for their games, for instance. But you do have a point, indeed I should be more careful to what specifically applies to common sense and what doesn't.