Multiple submittals to the same category aren't a big deal. Submittals to lots of different categories puts a site into "whack-a-mole" mode, where editors just try to get down to one submittal (which would presumably be moved to the best category for review.)
Once you get into that mode, it is much more likely that ALL submittals (rather than "all minus one") will have accidentally gotten whacked; it is also much more likely that any new submittal, if not in the exact category where the last surviving submittal lurked, will cause a new round of mole-whacking.
This isn't editor revenge for violating arbitrary regulations, it is the inevitable result of ignoring the reality of projectwork, as well as the guide to it commonly known as the submittal policies. I simply do not know what advice to give. The best bet might be to try one single submittal, NOT to the category mentioned above, but in a more appropriate and more specific category, and ask for a status on THAT submittal in six months.