I think besides the already mentioned lack of interest from the business side to produce decent software, there is also a established UX trend of developing by

I think besides the already mentioned lack of interest from the business side to produce decent software, there is also a established UX trend of developing by metrics. I've seen a lot of software pivot away from things and remove features because of metrics. If a feature is used by a minority or less than average, it's seen as useless and removed. For a lot of users, this removes something entirely, which they might have used infrequently but to great value. Sometimes you're part of a tiny group that uses a feature daily and it gets removed entirely, making the software much less useful or useless alltogether.