I was watching a preview of the 1986 RAC Rally last night and they interviewed some drivers about the banning of the Group B cars.

Malcolm Wilson & Tony Pond said they should have reduced the power of the cars and Wilson wanted turbos banned to reduce the fire risk. They both thought the cars could be made safe to use, instead of being thrown away altogether and going to Gp. A cars.

At least for 2022 there isnt a wholesale WRC car ban and start from scratch.