To me, the only real use for labels is to give completely new potential players a few signposts to look at / follow when trying to figure out which direction they wish to take their gaming. Big signs that tell them that X type of game usually gives a Y experience can help get that player to the starting line of the game more likely to suit their needs and get started.
But for the rest of us? Or even those players above once they've taken their on-ramp into gaming and can now drive the road ahead? We all figure out pretty easily that those signposts are barely useful for serious action. It'd be like needing to find a particular house on a particular street in a particular town in a particular county in a particular state, but the signpost / label we get is "You are now entering the United States of America".
Yeah... that signpost is technically true... but it sure as heck not gonna do a whole lot for us, LOL.