I don't understand why don't Satoshi Labs just run 2 or 3 instances of the web site. You could use the other one when the first one is down and also the spread load would mean less race conditions in the backend code. You don't even have to have a load balancer, just make it www1. www2. etc.
They don't want to and never intended on running even one. myTrezor only exists because by the time the Trezor was ready, no wallet software had integrated it yet.
Yeah, I know that. But looking at reddit and here, it seems to me that they may benefit from running more instances.