I've understood enough from discussions on here that costs can be affected by how un/reasonable continuing the case seems, if the other side wants to settle.
I think the combination of accusations of discrimination, transphobia, hate crimes AND professional misconduct putting patients' lives in danger were such a profound attack on SP's personal and professional character that it would be unreasonable to let them off the hook.
Not to mention the grudging statement about being cleared of the allegations BUT still needing time in a re-education camp 'a facilitated reflective practice discussion'..