I would like to add to this I have uprev, LTH and a sticker in MA.
Now it sounds like what is being stated is that if you run a custom (forced induction) set up and disable certain sensors to shut off reoccurring CELs then MA will fail you. I have no idea if that's true as I have no CELs or codes/systems disabled on in my car currently. I would guess that this makes sense, if MA now has a way to determine if certain systems were disabled to make it look like you have no CEL/systems not ready, they wouldn't pass you.
However, I don't think this situation applies to the majority of people who would be flashing uprev on a 370z as they would not need to disable any codes/systems to have the CEL off. And also if you ran a big custom set up why would you care? I see tons of cars with the R sticker at car shows, figured it was a badge of honor