It's funny how some have chosen to somehow magically relegate the R to some sort of magical "non-pro" level/status when the xxD line is clearly aimed at the prosumer customer and the R stands clearly above the xxD line. The R is clearly not a Tx(i) type of device that has always been Canon's "consumer" lineup. The R is clearly a pro camera as much as the 6DII was/is even though the Mk IV is in the lineup at a higher level feature-wise. As far as I'm concerned, the RP fits the same bill.
By that type of argument, the Mk IV is clearly not a "pro" camera because it's not a 1DX. The looking down noses at people just because they didn't write as big of a check as you did is getting tired and long of tooth and it's not a good look. The proof is in the pictures. Period.
"Pro" is a word that has become a thought-terminating cliché for many in the past few years, in all sorts of arenas even further than photography. It's convenient in that it sounds definitive, but isn't, so the definition can match whatever the speaker's biases are.