Hope so, but not giving a crap about a standard part of the interviewing process is definitely a character red flag. I don't think most people thought he was too stupid to do better. The thought is generally that he didn't take it seriously and now he's said as much. I always throw a red flag for people that don't take part of the interview process for a multi-million dollar job seriously.
I know some will say "look he got drafted early anyway" but we'll see how that goes. I felt the same way about VY's low score and his character issues have hurt his career. And the Cowboys also didn't care about character issues with Pacman (we know how that went) or Dez Bryant (hopefully he matures before his little incidents become more serious... but it'd be nice if he learned the damn playbook).