Doesn't look like blind defence to me, your raise from MP is no steal. Plus that is the weakest defending of a blind I have ever seen, call, call, check, then bet on the super scary river.

I see him having QJ TJ way too much here. Everything in his hand up to this point says he has something. If you have no reason to believe this person is capable of a bluff then there's no reason to call. He called you preflop OOP then again on the flop then makes a fair sized bet on a dangerous board, I say give him some credit.