I've got multiple Early Access launches under my belt now, including Stormblood, and I'm not too worried. Will we have hot fixes? You betcha? Could we have times the game is inaccessible? Definitely. And the game has been a DDOS magnet for every expansion launch. But that's a chance we take doing Early Access. We've still ended up with plenty of time to do things in the game, even with things like Raubahn Savage and Pippin EX. I'm on vacation and I've got my backup console game ready for any downtime.