If you don't trust him, he shouldn't be on the roster. If you do trust him, he is good enough to go in there.
Didn't work out, but that doesn't make it a bad decision.
The deep wing on that sideline was there and ruled it a touchdown. He was just far back off the sideline and blended in with the sideline personnel so the broadcast teams didn't see him. The short wing was coming in too, but it's not his call.
This is the only one I've seen. It's not like NFL teams to stop doing something just because it's a flag on paper (e.g., OTs lining up too far back). It takes them actually flagging it.