Yes the miner crashes when your internet connection disconnects, we have fixed the issue with a workaround in the full package version, but we have to fix the miner binary for the standard units which we should have an update for next week.
FYI if your running standard units on a linux distro you can wrap the miner binary in systemd with auto-restart flag for a temp fix.
Any chance of releasing the miner source? It looks like it's based on om-miner (like the bitfury b8 boxes), but haven't found the source anywhere. Is it going to continue to be closed source?