Well maybe they are bringing it back to where it was? As for the longest time in the US, a blue was pretty solid. I guess as Americans we changed it into a mini BB, as we did with other MAs. We like making the BB the peak, not a halfway point.
So maybe they saw that, and didn't like how the blue(the 2nd lowest belt) was being seen as a massive accomplishment in the US?
you can get your blue belt in 6 months training in Brasil.
Only outside Brasil, you can see instructors delaying promotions for financial reasons.