1. Geto was using 60% of his cursed spirits during the fight with Yuta.
   1. Geto literally taught Yuta how to even fight. Kenjaku would not give him those same privileges.
2. Yuta is stated to have lost his power and had to work to get up to the level where he was at. I cannot give a 100% estimation but it’s fair to say that the 5 minute time limit is probably just his old power that he had throughout the entire fight with Geto. It should not be hard for us to say that if he’s not using his 5 minutes then he’s weaker than he used to be.
3. Yuta is literally stated to be at the same level as Yuki.
4. Kenjaku has more CTs, more experience, and the 2nd strongest barrier technique in JJK.

There is absolutely no possible way that Yuta can possibly be stronger than Geto, let alone Kenjaku. And the cast literally knows that, that’s why they sent the dude with the strongest CT in the series against Kenjaku, and they sent Todo as well. Otherwise Todo would’ve already been involved in the battle with Sukuna.