The packaging bit is a non-issue. IMO rpm packaging is a lot easier to do and learn than deb. Besides if/when we move to using the community obs for building stuff it makes it pretty trivial to build both rpm and deb packages from the same source package. I'd call that a win-win. As with pretty much everything in software developement it's a matter of one's willingness to adapt and learn new stuff.
... And while some may claim that "small transitions" may be "easy" it is still additional effort. Effort that costs time that many "occasional" developers, like me, coding in their scarce spare time, simply don't have. I even often do not agree that transitions were so "small" a UI, e.g., may easily grow complex and needs to be thoroughly tested. ...