It's strange, cause it seems like the TS server isn't down, and I'm guessing they are on the same VPS...
Well if you expect it to be solely a hardware issue, it might be strange. If you account for the fact that it could be a software issue, or a hardware issue that caused a software issue, there are many plausible explanations. Blackout or hardware failure causing a sort of race condition by the Bungee process is possible. That accounts for TS going down temporarily while the MC servers stayed down. But like I said, there are tons of other explanations and Blue is pretty much the only person in a position to find out what happened.