A - Everyone was unbanned a few days later, with a warning to NEVER DO IT AGAIN.
B - You are making an assumption that no one was abusing this to give themselves an unfair advantage. I am sure that most were using it for perfectly fine reasons and some of the model changes I saw on reddit were great. Yet I also saw some who stated that they were using it for other reasons and those were the true targets of the ban wave. But they probably can’t tell the different between someone who made their breasts look better and someone who made the WSG flag pool a giant pink barber pool. So they gave everyone using the app to inject the model changes a warning.