You are correct.
Maybin wasn't my first choice (and I wish he would have stayed another year), but I accepted his pick as he had/has potential to be a dangerous pass rusher...something the Bills were looking for in the last draft.
While he was far from a sure thing, I thought he may have had the best high-end potential of all the pass rushers. He still may. You really can't judge any player's worth based on his rookie season.
Of course, one of the reasons I was OK with the pick was his reputation of being a very hard worker, great guy, etc. His holdout was unfortunate and something I didn't expect from him, to be honest. The reports of his lack of focus in preparation, if true, are also very disturbing and unexpected.