The distances don't sound like that big a deal, by bike (my own preferred mode of transportation
). And you get cardio training, for free!
I agree though, time may be a factor. You need to figure out how much time you need to do your schoolwork well, what other things you want to do with your remaining time, etc.
I don't think it's 'bad' if you decide you need to focus on other priorities at the moment. But OTOH it certainly looks possible at least in theory to train a couple of times a week elsewhere.