Is Lift-off bugged?

[Winterundies]

Battling Crysa, Buzz does Lift-off, my emerald proto-whelp goes next, does Lift-off. On the next round, while in the air taking no damage, both Buzz and myself take damage when we're in the air.

Doesn't seem right, does it?

[Digem]

Moves like lift off and burrow if both pets do the move both pets get hit by it. They changed that to do so awhile ago