I would say that it is a strange logic, that casino give you only one chance=one account,
not strange at all. most casinos nowadays offer bonuses as one time promos and incentives for new users, etc... if they allowed multiple accounts, those promos would be abused like crazy.
and if something happens (like with that guy, who was trying to be self excluded, instead got his account deleted), you have no chance to return. Why would not casino give a second chance to have an account, if you tell them your story?
The casino are so fond of amount of clients they have, that they dont want their former client to return? The casino only believe in "one final decision"? For instance, what is something got changed in my life and with me, that means I cant change my decision?
that's what a perma self exclusion is for, your account gets closed, and you are not allowed to return for life. casinos are both morally and sometimes legally required to do that once you ask for it.
it does not matter if you change your mind, or whatever. a self exclusion, whether it's a day, a week, a month, or permanent, is a final decision and never to be lifted, unless it was a technical error, a mistake by the casino, your account got hacked, or something like that.
on the other hand, if you like rage close your account without requesting a self exclusion, you can always come back and open a new account, you just need to make sure to check with support first to avoid any problem.