>>37977818It reminds me of how Gen 5's evolution levels, which were set based on how late the pokemon was encountered.
Example:
Rufflet here was first encountered right before Victory Road in BW, so its evolution level was set very high (level 54) to ensure players wouldn't just evolve it immediately.
But when Rufflet appeared on Route 3 in SM, this wasn't changed. Any poor bastard who might catch the little eaglet would be stuck with it being unevolved throughout almost the entire game.