Admittedly this isn't super exciting, but he's probably a better option than Haase. As other posters have pointed out, Haase doesn't have any options remaining and he got a $1m big league deal. My guess is they roll out of camp with 3 catchers assuming all 3 are healthy and then put off making that decision as long as possible. Taking it a step further, unless he just absolutely sucks, Bauers probably makes the opening day roster too since he is also out of options and the rest of the 40 man roster guys like Owen Miller and Andruw Monsterio still have at least an option left. Would make for a super clunky roster on opening day to carry 3 catchers, 2 first basemen, and likely 5 outfielders. So probably wouldn't be able to keep Bauers and Haase for long if the team is healthy coming out of spring training.
I'm not upset that they're adding to the options at DH, but it kinda would've been nice to just run out the young guys as much as possible to see what we really have in Frelick, Mitchell, Weimer, and to a lesser extent Perkins. All of those guys have options so they probably don't all make the opening day roster. I do hope Chourio starts from day 1.