I also find the naming strange when it is unrelated to bzip2. Not that it is a reason to block the addition, of course.
It is a common objection. It makes sense. Sadly, it is also the trodden path of software naming: lrzip (Colivas) came as an independent improvement after rzip (Tridgell); Seward's original bzip had nothing to do with Katz' regular ZIP by any stretch; bzip2 shares no code with bzip. bzip3 can be thought as a synthesis of these both with some nifty new software engineering practices. Names are meaningless just like that. I use tar daily, but I have never held tape storage in my hands.
