Priority Pass alone is not good. You also need to do an MMR reset

[Kaedi-11739]

Community Manager Josh Nash just made a key post addressing this here:

Using the Priority Pass and Intended Use

Hey everyone! Now that the Priority Pass is live on the Retail environment, we wanted to make sure we were clear on the feature’s intended function, goals, and what constitutes misuse of the feature. How It Works: Intended Function The Priority Pass is intended to offer players a reward for queueing “Flex” on the role queue screen, thereby helping to fill games’ most needed roles and increase the rate at which matches begin. When you queue for “Flex,” you are essentially signing up for all t…

The development team have said in the past they have no plans to ever do a MMR reset.