Sure, but Kini has only played 24 NRL games. Sure he had a great season in 2024, but that is just one season. Daine Laurie looked like a great player after his rookie year but struggled once teams started game planning around him.
Kini is a great player, but there are also some valid questions marks around his defense and size.
I'm not saying he's better than Bula or Bula is better than him, i'm just highlighting where the market is currently at and Kini is the best comparison given age, experience, talent, potential etc.