That’s a fair point: but it doesn’t change the underlying narrative. The ideology motivating development of (F)OSS alternatives frequently produces software that is not as good as that produced by a market-demand ideology.
My initial diagnosis is that it's because of limited/nil feedback. Market driven projects at least have some sort of user feedback (e.g. early market research) that drives the development. It is often flawed but it's better than just a bunch of engineers assuming stuff.