Things like this could possibly happen for any boxer because that's the risk of their sports. I just felt really bad for Wilder because we all know how he built a good name in the industry yet he has to lose his career for a while due to that kind of condition. I guess his rest should also be his opportunity to get well and try new strategies for his future matches if ever his suspension will be lifted.
For this reason, I always say that the preparation of a boxer is the most important thing, it does not matter that you have a physique with privileged genetics, you have to train a lot for a fight of this level, sometimes preparation is not enough, This type of event is very likely to always occur in boxing, at least he can recover, there are some who do not even manage to survive receiving so much punishment and blows to the head. I know the case of a friend who was an amateur boxer and who could not come out of a fight so well, and due to the heavy blows he received that caused a stroke, it is incredible, but not everyone is born for sports, there are genetics that are special for each sport.