Part of the issue is that it also took them 2 months to get any sort of qualified patch out the door.
The previous ones only fixed like 2-3 game breaking bugs each and that was that.
The most recent one does a tad more, but still nothing to write home about.
Some people keep parroting that Bethesda has always had a absolutely horrid trackrecord of patching their messes, so you shouldn't complain about that, but I refuse to give them a pass on that.
People that keep saying that are pretty much saying "yeah, me dog shits in my bed every single day and I'm not going to do anything about it because they've always done that."