>>40585532Wait nevermind, this is just gen 5/7's EXP formula at work, and the guy on Twitter was being an idiot.
The EXP is based on the level of your Pokemon vs the one you just defeated, and not participating in battle halves the base EXP.
There's three level 12 Pokemon here, with the base being 70, but since Sobble didn't battle he gets half that.
Higher leveled Pokemon get less, and half of that if they didn't battle.
It works the same way as gen 7, while the guy on Twitter makes it sound like it's a new and more gradual system.