Not really. Just because others haven't worked on the show as long doesn't mean they haven't done their homework. Not everyone is Bruce Kalish who just doesn't care.
How do you know? Disney hires who they feel can get the job done. I doubt they go out of their way to hire people that don't care. Does Disney care about Power Rangers? They care about toysales. You can't really blame them for that. There are writers everywhere that are ultimately just there to get a paycheck, not because it's what they love doing. PR is obviously a difficult project to run, but Disney's not intentionally filling it with people who don't care. Even with Saban, it ultimately came down to money.