So you would say that drafting Gronk at pick #42 was an inherently stupid thing to do, even though it worked out? We're talking about 13 spots in the draft.
I think the difference is Gronk has probably watched a game of football in his life, and didn't show up to training camp mauled by his own dog.
If you are going to take an injury risk high up in the draft, at least choose one who is also not an attitude risk.