I had this as a "Select the missing word" question, with the last word missing. The choices were rùisgte, loisgte, reòite and ruaidhte. Without being able to see the buttocks concerned, how are we expected to know whether they are bare, burnt, frozen or reddened? I wasn't sure which reporting option was most appropriate for this problem, so went with "Something else went wrong".
I can't tell you how many times I've read through that document over the past seven months, and I'm still finding more words to fix. This is one of those that I really don't understand the logic behind. I'm sure there is one though...
Taing mhòr, a Dhaibhidh, I'll add it to my list :)
The logic is pointed out in BillCassid2's comment here and my subsequent analysis, which there is no need to repeat.
But whether they should actually be reversing changes that have already occurred I am not so sure.
Sometimes I think they are trying to follow the example of l'Académie française, which excelled itself recently by deciding that Covid was feminine (on invalid grounds) after everyone else had decided it was masculine.