While I agree that some are more down on Hogan than they ought to be, I don't think Roman failed to utilize his skills. I don't know how many more receptions or TDs you think he deserved, but with Sammy emerging and the run game being so strong (Hogan helped in that area too), I don't think we needed more from him, nor do I think utilizing him more would have given us any more wins.
The Bills wanted to bring him back, but they obviously need to save money for upcoming contracts and Hogan is replaceable. I think he's good, and he's perfect for the New England offense, much like Edelman. If Edelman went to another team, I'm sure he'd have similar stats to Hogan's last year.
True. Also worth noting he was in a non-contact jersey.