Being in the midcard in the WWE isn't bad at all - that is, if the intention is that they're always going to be in the midcard and never move forward from that position. The way WWE works (and most wrestling but this is the WWE section so hah) is that the main eventers get to beat people below them until the PPV while the midcarders get to trade wins with every other midcarder on the roster until they're at a 50-50 average in singles matches and eventually given an intercontinental title reign.
That's all fine and dandy until it comes the time where they need a fresh body to liven up the main even title scene and everyone they have to pick from has either been beaten over and over again by the main eventers they're supposedly now equal to, or they're just another one in the crowd. They say that all it takes is a solid push for a month or two to get everyone to see a guy as a big star, but that's just not how it works in the real world. We, the people of the mysterious network of data known as the "internet" react to such a push in a positive light, citing that they're finally getting the recognition they deserve for their skills or some other positive bullcrap while the majority of the fans, the other guys, will see such a push as completely unnatural and be too busy wondering why the hell this guy who lost clean 4 weeks in a row to Kofi Kingston is now challenging the WWE champion. the "wins and losses don't matter" mentality is half-wrong, they don't remember the losses or wins, but they know where that guy stands because of them, they don't think "this guy loses 87% of the time" they think "this guy has no chance and therefore this is not interesting to me" and that's why being stuck in the midcard can be at times a bad thing (yes i know it's possible to break the mold and be super mega amazing all of a sudden, but how often does that happen?)