Those arent the only requirments, you need to prove that he made the hand signs, which you cant because Rika was holding 2 of his hands, 3rd hand was cut off by Yuta, the 4th was injured iirc
He can use dismantle without pointing, you're aware right? In a dire situation like this, he would definitely do it to avoid wasting time by gracefully pointing towards them.
This is one.
Secondly, he did take cleave.
To the head.
He still has 3 arms.
His other one only gets sliced through the arm (the burnt/bloody looking arm on Sukuna's right side of arms.) It isn't cut off in half or the like. Just almost sliced off kinda.
So youre saying he let his hands off from Rika, made the hand signs and started to chant while Yuta and Rika are just watching him?
Doesnt make any sense when Yuta is able to injure his hands and cut them
Yuta had just went through the motion of stabbing his sword into Sukuna's lower right arm to slice it off, Yuji went up to disrupt his soul, it failed. It is likely that he was waiting for Yuji to succeed. So Yuta's guard could be lowered down. And Sukuna is far faster anyways, don't forget. And, as to how he got his hands out of Rika.. I believe the panel showing him pointing his hand forward is obvious? He likely coated his arms in a lot of dismantle to get out of it, then chant quickly to point world slash at the other two. It could also be cleave that he used on Rika, given yknow, Rika's large af hands encasing Sukuna's entire hands. So the latter I believe. We also see Yuta with his sword up so there's that, an attempt to defend.
Also no, Yuta didn't "tank" cleave. But the slashes did indeed weaken, which is why he was able to survive cleave point blank (head). Sukuna is being constantly weakened yknow? Yuta even notes his dismantles aren't that difficult to brave through anymore either..
So, the idea that Enchanted regular dismantles can somehow pierce through Yuta's arm, his sword and through his body, then through his back, is weird.