No, it is definitely not. Posting on these forums usually gets a response within a day, and there is a good amount of activity on the forums in general.
Also, the bug reporting available on the pages of individual Grammar items and Vocab items usually gets a response within a day, maybe sometimes longer, but usually gets one. Also, for bug reports during quizzes/reviews.
However, if you filed a ticket (I’m imagining via a general feedback form, or possibly via email), and did not get a response, I would consider this a site-usability and customer-feedback/customer-support issue which hopefully they can begin to address better in the future. Maybe they could put it on their general plans/roadmaps.
As for resetting the WK ‘progress’, that’s available via the Settings > Reset page, under Reset Vocab. Select “Wanikani” (or whichever option you want to reset) and then click “Reset this Deck”.
[NB: It can’t be ‘undone’ (in the sense that you can’t just press a single button to revert back if you did it accidentally), but since you are new and haven’t made any specific progress on Vocab on BunPro anyway, this shouldn’t be a big issue. You can always go back to the Settings > General and press Sync Vocab again in the future; it will just consider that a ‘new’ operation rather than an ‘undo’.]
Personally, I did not really find the Sync Vocab feature very useful overall. I ended up resetting all my Vocab and starting from scratch anyway, because BunPro has recently added support of so-called ‘Cloze’ reviews, which allow you to answer Vocabs in the context of real Japanese sentences (like fill-in-the-blank, basically-ish). So I wanted to ‘re-learn’ all the WK vocab having this in-context support. I find it really valuable! Anyways!