> Some go to extremely leveraged 0DTE markets and weekly options and move to suboptimal strategies

This imho is currently the biggest problem, or at least has at times been my problem due to the time pressure inherent in 0DTE. With the PDT limit gone, one can just trade shares instead which have no meaningful time decay or pressure to exit in the same day, and so the chance of a harmful tail event is meaningfully reduced. In shares, tail events often correct themselves within a week.