Are you against them?  I added them based on doing the fivemat work...check out how much this allows us to simplify there:

https://github.com/myronmarston/fivemat/commit/9a801fb75be6b53d7f0cc34b6ff04ef106579342

When using composition rather than inheritance a 3rd party needed to copy/paste a bunch of code out `BaseTextFormatter` for the things they wanted to format the same as rspec's formatters do.  Exposing these methods makes it trivial for a 3rd party formatter to emit some parts in the same way rspec core does.  I think that's pretty common...it's not very often that a formatter uses custom formatting for everything, and if they want to do that they certainly can (just don't use these `fully_formatted_*` methods.