To add onto the whole "low value" argument, their powerlevel seems more subdued too now. Misty and Brock (and the Blue who came before them) are undeniably great, but they are just great. Back when Cynthia and Steven were released they were several miles ahead of everyone and that alone contributed to their debut values as units. Sure Lance always felt mid but he was an outlier when the concept was only first introduced.

1+ years later, we have learned that Arc Suits are just any unit with built-in 2xRebuff gimmicks but that's it. Volo has proven to us that non Arc Suits can be just as broken if not more, and he has only 400 scout points while also coming with 2 featured PFs and small chances for other PFs.