I think part of the problem with Mac, that becomes apparent every so often, is he doesn't actually know all that much about a lot of the new players. He barely know their names. So he can't really discuss their playing styles very well, he has to go over the same anecdotes over and over because that's all he has. He doesn't even know who some of the reasonable big names are, if he isn't interested in them .
But you can bet he thinks the likes of Kyrgios are great.