Gamey? At first I did think it was, then I thought about it and changed my mind. I sort of approached it from the opposite direction-- I decided it was probably more gamey to bring back a damaged bird, exit flight and jump back into a completely repaired plane in less then 5 seconds. With repair hangars, those who want to can wait around for a bit for repairs to be done. So it seems a little more immersive, which to my way of thinking is the opposite of gamey. One good thing is a change like this would have no effect on those who who weren't interested in using it - so it preserves freedom of choice.
60 seconds for repairs isn't very realistic, but neither is 30 seconds for refuel/rearm, or flying 3 minutes to a fight. Time has to be compressed to keep people from getting bored...