1. Takes potentially 2 turns for a fast aggro deck so no decks that want to curve will play it.
2. the decks that that card “destroys” already die on the hands of repeated early removal. Jitte would only close the games. It would act like a win more card in jund or Abzan.
3. It would only elevate Faeries, Wizards, Blue Steel or Bant Eldrazi to another Tier. Those decks are not a thing now.
4. Could be a universal SB card like explosives is, but clunkier and less efficient.
5. Merfolk doesn’t need it. Only as SB. Too slow for infect.
6. The only real threat i would see it in is in Bant Spirits. But thanks to consistency that Company offers, you have to reconsider to either play paths or jitte for maximum creature hits.

Now if you Unban that card alongside Stoneforge…that’s another story. Stone forge on the other hand, takes 5 slots minimum away from every midrange/aggro White deck. there’s only 60 cards in a deck, so how many cards would have to be pushed back into oblivion for her return. the card itself is less powerful than Jitte but takes away so much more diversity.