Oblivious to it. If they saw it, they'd assume it would be a cartoon.
Good on Osamu, we all had a feeling he was going to do something. I believe a draw in 21 battles was a good way to show how A-Rank characters are powerful, and how he relies on his wits.
I think this is the most of an episode we've had in a while. I look at the time and the entire episode was 23:15 time. Including opening, theme, ending etc, that took off 4.01 time wise. That's a lot to lose. It should be maxuimum 3 minutes.