Damn. That's crazy bad.
I've seen 3 or 4 other instances of this same problem reported across a couple of different helicopter related Facebook groups over the last few months. So you are not unique, but it's also not an full blown epidemic.
I put on a set of new -7's in Jan. They are up to about 50 hours now (pandemic has really chilled operations) and so far so good, but keeping an eagle eye on them. No operations in rain on them yet.