Perhaps some people would trust Ivey less as a result of this. However, the people that matter to him are other high-stakes gamblers, and within that community, one will find very few who believe that what Ivey did here was even in a gray area, let alone ethically wrong. If anything it’s won him the admiration of others.
I’ll admit to bias here, as a large part of my livelihood consists of “abusing games in an unintended way to win” from casinos. They set the rules, I play within the rules, and if their rules allow me to win in ways they didn’t anticipate, that’s their problem.