While I'm not a fan of outrage and cancel culture, the simple fact is that console ports on PC suck, most of the time. That includes all Rockstar titles and gems like Arkham Knight - games that are undoubtedly amazing, but (in case of the Knight to this day) unplayable on PC.
Insomnia's advice wasn't based on "outrage articles" but on a simple fact that half of the people who bought RDR2 on launch day couldn't play it in one way or another. Rockstar pulled a full Bethesda, here.
Launcher that crashes when trying to launch the game or "forgets" thhat you bought the game, game running at 5FPS on some combinations of Intel CPUs and MBs, game refusing to even start if you have a Ryzen board from Gigabyte, game running at <60FPS on 2080Ti, those aren't "made up opinions". It's just how things are, now, and suggesting that advising somebody to wait with the buy is outrage culture is outrageous in its own right.
This has nothing to do with the quality of the game. Just the quality of the port.