I think that 45s is just way too short considering 1m30s loading times in this game. For short queues I basically sit in the same zone so I don't miss it, but for long queues you'll be wasting your time if you can't go into a loading screen.
IMO, they should increase it to 2m, then you can load, take a bio break, and still not miss it, and overall it's not that much of a difference.