The point is it's open source, so people will volunteer to work on what they want. Just because the bugs you cared about weren't worked on doesn't mean this work took any resources away that could have been applied to them.
Yes, but presumably Moz with their $300M from Google, or whatever it is (pretty sure it's of that order) also surely employ a few programmers to squash bugs, so just waving your hand and saying "volunteer developers" doesn't quite answer the parent commenters dissatisfaction.
