They actually do owe us patches, given the amount of money this game costs and the severity of the bugs
As I said in another thread, bug severity is not open ended in the industry. It is basically set out like:
Class 1) Unshippable
Class 2) Incredibly detrimental
Class 3) Annoying
Class 4) Suggestion
I would say that YES, they owed you any class 1 fixes. There are no class 1 bugs in DBC. There are maybe 2 class 2's. Some 3's. LOTS of 4s.
You are incredibly fortunate that a developer would consider fixing anything other than a class 1 in a patch.