None of them will admit that it's their fault, and thus will keep pointing at the other party. I have read an interesting theory that's basically implying that Visa did it to make crypto as a whole look bad due to Coinbase's size.

It could turn out to be the reality, but on the other hand don't want to assume something without any proof being shown, because in the same way, it could be totally due to Coinbase's incompetence.

Bottom line is that both will suffer major public damage if they openly admit their fault, since this is nothing more than incompetence of one of the involved sides. As long as it gets settled, people should be happy and move on.