You do realize that updating Luma involves replacing a single file, right?
Yeah, one time its friends module patch didn't work on an updated version of it, and it was swiftly fixed. If you are online to update or play online, it takes 10 seconds to update Luma. It's not a big deal.
If something breaks with rxTools, you get to find a new CFW because it is not getting updated.
Never had rxtools break. I guess we'll see one day, if it ever happens.