I had a similar feeling at one point and I was seeing much better results than in the past few years on my personal grading of WOTC cards namely pack fresh Fossil 1st, Rocket 1st and Jungle 1st cards. What I see though is only a small subset of what actually is out there, so I decided to investigate by updating my “PSA grading difficulty” article.
I found that for early WOTC sets, no (statistically significant) higher portion of 10’s was being given out for those sets that I explored in the past 1 year compared to all grades given out before them. www.elitefourum.com/t/psa-grading-difficulty-by-set-8-7-19-version-1-3/14556/46
Volume is up, so errors at the same rate with a much higher volume will clearly result in more errors. With social media and such, most issues will spread quickly and I think that is what we are seeing. I still think there are issues, but not in any higher portion than before. Higher than they should be? I think so, and probably many do, but it is hard to quantify what should be acceptable as 100% accuracy will never happen. Regrading really affects this as well and will only get worse as once a card is “overgraded” it will remain in that case forever. E.g. 9’s of some cards can be submitted 50 times profitably if that 50th grading results in a PSA 10.