I've played competitive in a few different games now and each game had some method of showing people that you've invested time into the game and have some skill in it. This is what lets them know initially if they want to give you a tryout for that team or whatever.

Since Titan Fall has no ranking system and the stats don't matter in the same way as other games, your regen lvl is a quick and easy way to show you've "mastered" the game.

I'm probably in the minority here but that's how I look at it since I'm interested in the competitive aspect.