there is nothing from what i have seen from rhule to keep me from saying that there's no way that he would do something like this to keep PJ active on the team. loyalty is his default. people rarely deviate from their default.
CMC has NEVER complained. Not about his workload. Not about the team. Not about the QB. Not about the coaching. NOTHING. Wherever you heard that from you heard wrong or were told wrong.
Now, folks on the Huddle do often discuss how (in their opinion) CMC should be used to increase his effectiveness and longevity. Those discussions are usually rather valid.
I'm pretty sure that everyone here wants to see CMC on the field as much as possible. Whatever that takes.