Personally, I think progressives are nuts to reject endorsements for the most progressive candidate in history from generally centrist and enormously popular media figures. I would bet anything that Rogan’s audience is full of the Obama-Trump voters across the industrial Midwest and north.
But, maybe I don’t think like a progressive. Perhaps rejections like this reflect a serene confidence that progressives don’t need political power to continue consolidating culture-war wins. Four more years of President Trump just means a few more executive orders to overturn. Meanwhile, taking a hard line encourages corporations, universities, and entertainment to enforce the newer cultural norms.