I'd be hard pressed to call a 1.5 hour press conference 'concise', but I strongly disagree with you about it not being engaging. I find him a pretty engaging speaker at the worst of times (I mean he is both a lawyer and the former mayor of NYC) and when he gets sarcastic or heated it's very entertaining.

As for the "lines running on his face", the most I noticed was him dabbing away some sweat a couple of times.