Doesn't moving, including jumping, get you out of the small areas generated by cantrips anyway? Cantrips are incredibly weak at-will spells as it is.
Enemies can't jump, and moving normally can re-inflict a status which just ended, dealing additional ticks of damage. And for players, jumping consumes a bonus action, and for better or worse, Larian seems really keen on giving players a lot of things to do with bonus actions.
