I don't think anyone has said he's winning only because of the jumps, but the fact of the matter is his difficulty level in TES with the 4A, all the other quads, and crazy combinations is distancing him far apart from the rest of the skaters for it to not make a difference when they hand him 9+ PCS.
This is nothing new in the history of IJS or even 6.0 skating and nothing exclusive to Ilia, and the thing is that bumping his PCS down to a more accurate level is still going to result in him winning by a large margin when he skates like he did last night.
But, objectively speaking: the first 2 minutes of his free skate offer very little in terms of showing off any skating skills, there's next to no choreography, and the only 'performance' level one can really speak of is in the audience excitement over him landing the difficult jumps. He knows he has a long way to go in skating skills and he's certainly not at a 9.00+ level if one were to read the criteria of the component, but one judge even handed him a 9.75 last night. I think I'd find the judges very hard-pressed to explain 9+ composition scores with the program being so lopsided/focused, too.
I want there to be the same kind of differentiation in PCS, rewarding the skaters that do in fact have complete mastery over their skating skills, keep the performance level from start to finish, and do have very strong program compositions. Ilia gets that big differentiation in TES, but then the PCS scores tend to go out the window when the big jumps/leaders come around.
Alas, it's not going to ever happen which makes my or anyone else's ranting almost pointless.