It disappears into the background for me, I kind of forget it's there really. Fortunately there's nothing of real value within the passes so it's never been something I've focused on. With things like Gran Turismo, it affected the overall gameplay loop and enjoyment, funneling you towards spending real money in the game. I think with EA, EA SPORTS FC and ultimate team distorts the view point of EA and MTX because it's such a huge beast. Elsewhere they really aren't as bad as they get made out, everything else is almost always limited to cosmetics and when it wasn't (battlefront 2) and backlash and subsequent U turn was, firstly, massively damaging to them, but also showed a change in philosophy afterwards.
With WRC, being quite a niche thing in the grand scheme of things, I can't see any kind of MTX program working. It is the wrong type of game for it to be required or to work and the fanbase would reject in strongly enough for it to never be viable.