Plus the RORSATs leaked coolant all over the place, which is both a radioactivity and debris hazard. But in any case, these are all problems that are both less

Plus the RORSATs leaked coolant all over the place, which is both a radioactivity and debris hazard. But in any case, these are all problems that are both less likely with new designs (e.g. kilopower uses sealed heat pipes with no moving parts for coolant), and less of a concern when the reactors are either in interplanetary/cislunar space or are nice and buried.