Someone at my school speculates that they inflated Altaria's EVO cost to minimize easy access to Dragons, for Medals or generalists.
Trapinch to Vibrava is only 25 candy, and Trapinch isn't hard to find.
Though your comment could be right and Ninatic may have forgotten to increase Trapinch's evo cost.
increased Chansey spawns from 0 to 0..... thanks Niantic
I wonder if Niantic increased the encounter rates by 50 times. Luvdisc was literally everywhere. But I haven't seen a single Chansey since Valentines last year and still none. 50 x 0 = 0.