There are many reason, but this one alone answers the question: You are primarily riding groomers/on-piste, but the Magic is primarily an off-piste board.
Fantastic deck, but groomers are not its strong suit. Its like taking a big pow stick into the park - you could, but why would you want to?
This is a good point. I can attest that the Attack Banana kills it on groomers. It loves ice and hardpack, soft snow and slush. It's a true "all-mountain" option.