"That's an amazing scene"
Death's aren't really amazing imo.
Neither is abillity reveal unless it's followed by someone kicking ass. Given that Sukuna has been doing that for the past dozen chapters, it wouldn't be "amazing" if he just continued to do it.
And given how last chapter ended, Yuji doing some crazy shit and finally getting the attention of Sukuna, and us finally learning what Yuji's whole deal is. That seems like the obvious choice.
So Yuji goes super saiyan.