"Bullish" means optimistic or even aggressively optimistic. It's typically used in the context of markets.
Sane is an adjective, 'X but Y Noun' expects Y to be an adjective if X is also such. Sane/Bull Case-> Sane/Bullish Case
Right, so they probably meant bullish
Sane is an adjective, 'X but Y Noun' expects Y to be an adjective if X is also such. Sane/Bull Case-> Sane/Bullish Case
Right, so they probably meant bullish