From what I know, using alts is done at your own risk and if you lose printers that are down on alts because of sandboxie or whatever then its a risk you are taking, I would say its fair to have that risk otherwise its kinda no risk all reward. (my opinion would be wrong here obviously but otherwise alts would just become a far too overwhelming of an advantage (I would say they are already)). Is what it is though. ¯\_(ツ)_/¯