I think DBD outgrew BHVR's capability to handle it.
For the most part BHVR never anticipated DBD growing as big as it has. If I remember correctly that was stated by one if the devs a while back, could be wrong though.
Whatever the case, we as a community are feeling their inability to handle this game. Whether it be through the copious amount if bugs that pop up every update, and sometimes take years to fix. through updates that seem to have very little thought to the balance of the changed object. Or through promises that never seem to be kept, as is the case with console optimization.
I want to see this game succeed, that's why I bother to be vocal on the forums. But I just don't think BHVR is a company that is capable of making DBD succeed anymore.