Considering the woman being harassed explicitly stated that the harassment she received was mainly misogynistic in nature, no. It very much is relevant to the situation.
No one is forced to do achievements to enjoy a game. I understand achievement hunting, but since they can easily be cheated (on steam at least) it really is only a personal goal. If you are not enjoying one just forget about it.
It can also make the incredibly tedious and irritating. Elite Dangerous is an incredible simulation of our galaxy that has terrible gameplay for your average player.
Yes, not only many people still play the same games for 10 years, but also spend most of their gaming time in them. There’s a reason why a new live service game is both a gold mine and also incredibly difficult to stick.
Although certainly similar, the fact that these games have every scene fully animated does add to it in a way that simply reading descriptions about what’s going on doesn’t.
Valve doesn’t want to make a buy to play game unless it’s something that pushes the medium forward somehow, which is the only reason Alyx was made. A PvP moba can be a source of continued revenue like all the other games they still support (and one they don’t).