Robert Alfons, we're making these rules up as we go--the whole idea of quick rises/drops was anathema before it became a necessity post-server crash/ORAS. If we decide that the metagames would be better served by keeping Gallade in RU for an additional month, we will.
Here's one reason why: if we keep it in RU, it will have an even easier time dropping to NU next month, when the cutoff is only 2.3%. But if we let it fall, it's extremely unlikely it'll muster the 4.5% RU usage next month required to get it back into the tier. So the "safer" thing to do is to keep it in RU. Not saying that's what's going to happen, but that's the argument.
Here's one reason why: if we keep it in RU, it will have an even easier time dropping to NU next month, when the cutoff is only 2.3%. But if we let it fall, it's extremely unlikely it'll muster the 4.5% RU usage next month required to get it back into the tier. So the "safer" thing to do is to keep it in RU. Not saying that's what's going to happen, but that's the argument.