I am 1 that feels that a person should take responsibility for their own actions. Even if they did block you, would you have actually stayed away or would you have looked to find another way to get back on the site? What if your bets had won, would you still be making this thread? Or would you have lost the winnings and then made this thread hoping that no responsibility falls to your shoulders?
I am 100% in agreement with you.
While waiting for the casino to approve the self-exclusion request, he had the option of blocking the gambling website, at least that was one way to take responsible and help himself to stay off gambling.
I have yet to see anyone who successfully self-excluded. People typically have more than one casino websites they gamble on so, being self-excluded on one doesn't mean being self-excluded on the others.