It does move goalposts, but you have to consider than in real life a majority of race car drivers haven't had a single pole or won a single race, and most of them never will. Or maybe not. This is a game after all.
In-game achievements I don't particularly care about, nor the gt app. It's probably just an afterthought
I don't like the most popular car list per race. It means even more people will become meta sheeps
What most people tend to forget is that GTS is a racing game back to its roots, not a car collecting game that happened to have racing in it. Austere if you think it is, but maybe it's not just for you