He doesn't need upgrades right now. Two quads and two triple Axels in the free skate is enough to make the top ten at Worlds, which is what his mission is for this particular season.He's going to need upgrades, so why not debut them at 4CC in a relatively pressure free environment?
If his long-term plan is to bring more quads in, he can start on that in the fall and see how they work out in lower-stakes competitions.
I personally think it's probably better if he's got some pressure on him at 4CC, because there's going to be even more at Worlds, so he'd better start getting used to that. Russia certainly doesn't suffer because its skaters have to do well at Europeans to go to Worlds.