I think GP is pointing out a legitimate asymmetry between the "two sides": there's one* way for a conservative to do things the way they've always been done, and there's an infinite* number of ways for a progressive to change things to do something different, for better or for worse. The Paradox of Choice affects one side much, much more than the other.
https://en.wikipedia.org/wiki/The_Paradox_of_Choice
* I'm exaggerating a bit of course.