I wouldn't worry too much about over an hour. If I remember, last time this happened it was because they clearly throttled the queue and let in fewer people at a time. Waits dropped quickly.
Prioritize. I gave my fast queue to a friend and she was not able to use the same link for multiple registrations (doesn't mean it's not possible as it usually is and could be user error, but it's a possibility)
It would make way more sense to force a log in before joining the queue and locking people into one spot per account. They’re asking people to stop jumping in on multiple devices but not fixing the underlying problem, so nobody is listening.
I don’t trust them to build a proper lottery system, given some people are trying to sign up multiples. Makes it more complicated than your standard lottery system where you’re trying to get into one race for one person.