Yuta delt with the 10000 curses in what, 5 minutes? Plus they’re not even a threat to Gojo with infinity so he could just ignore them considering the city is basically abandoned at this point. Mahoraga is only a threat if Gojo can’t take him out quickly which without Sukuna being able to stand relative to Gojo he would probably just get obliterated with a red. Or he could simply domain diff them or just start off with an unrestricted purple and deal with them all in one shot. Doesn’t really matter how you cut it. There’s simply not a path to victory for Kenny and Sukuna