Yes, Atamara seems very tame. Smaller groups, and less recurrence of groups appearing.
In contrast, Beluaterra seems to be about the same as Dwilight in circumstance.
To take a wild guess: rogue spawns were all increased by x amount (percentage) across all continents (the same on all). Because Beluaterra and Dwi already had higher base percentages (a guess), it went all out of whack.
