Actually, the biggest concern is that they will be forced to share heat/hiding places. The reason they huddle together is because they both want to be in that particular spot at the same time, and are forced to tolerate each other in order to stay there. Having a cage mate stresses them out and makes them feel insecure, snakes are not social creatures. You also will never know which one pooped/peed and if mites somehow get in, they'll both get them.


But apparently you know everything there is to know about snakes.