>>34585920I wouldn't worry about it. These systems seem pretty safe, engineered with countless redundancies and failsafes to minimize probability of error. By that logic, any trainer would have just as much a chance of something going wrong from a Poke Ball deployment, capture or Pokemon Center transfer, and even then that'd be out of my hands.
If they weren't safe, no one would use them, nor would they be an official Pokemon League installation.