>>57642859>game AThey're non-essential to LGPE, PLA and LZA.
That's three games on the Switch, and then abilities only appear in SWSH and SV, two games on Switch compared to the three that DON'T have abilities.
BDSP obviously need not apply because it's a remake, and it would be unfaithful if a mechanic that was originally present in DP didn't reappear in BDSP.
So all and all, Abilities are becoming a non-essential mechanic to the franchise.
Abilities also don't exist in GO, the most popular Pokemon game of all time, which has very obviously influenced GameFreak's own perception on what's essential and what's nonessential in Pokemon.