I’m not sure why I should care about this. Even if Rian and Mark hated each other’s guts (which seems not to be the case despite a desperate attempt to make it seem so), why should that matter in the slightest?
Im not saying they necessarily hate each other’s guts but I do feel their is some back and forth exchange of low level animosity for various story and directing decisions from which various tensions have sprung.
But even that aside, I just think on a pure respect level that it’s simply not on and it shows a casual contempt for Mark. Do you hear Mark swearing back? No. Swearing in Star Wars itself never used to be a thing (maybe in universe but not real world swear words, especially such offensive and on the nose ones) until the ST as I’m certain there was an actual swear word in TLJ which very much surprised me. I’m an adult and can swear just as well as the next if I want to but there’s a time and a place and your own compass on such things that says you don’t say “mofo” in a public Q and A where minors could be watching and certainly not directed at a highly respected and loved actor who personifies his character that everyone also loves.
Additionally, I have not yet ever seen RJ address Mark or other cast as such before and so it seemed furthermore out of place and character which makes me thing even more that it was an intentional jab at Mark to watch his tongue when answering such an obviously heavily loaded question that directly relates to all the drama around Mark’s character and everything he himself is on record for saying about it.
Val
Edit: Regarding swear words in TLJ, I just tried to research it a bit and there doesn’t seem to be a swear word in it that I would call shocking (being Australian) but there are definitely low level swear words in it that I haven’t heard in SW before such as “bastard” and “ass” (used by Finn to elaborate on the “big ass door” which swearing aside, that kind of current day saying is distracting enough to hear used in SW). Before that it was only ever “damn” and “hell” which in the land of Oz aren’t even considered swear words 😉