Having a 33% higher usage rate is good evidence for you being more valuable, not less.
Here's the thing, the Cavs forced the ball out of Curry's hands, whereas the Warriors wanted LeBron to beat them, and not have him pass to open shooters - which ultimately was the best option given his jumpshot had fallen off a cliff and he ended up averaging 36 points on 33 shots.
And 33% higher usage rate by itself doesn't explain 40% more scoring and 40% more assists. Lebron's outsized production outpaced his increased usage rate.
It also doesn't explain all the points and open looks Curry created through being double/triple teamed with the Warriors capitalizing off more ball movement.
And yes, Golden State missed some shots, but the Cavs missed far more. Let's match the players by shot attempts in the Finals:
JR Smith or Klay Thompson?
Dellavedova or Iguodala?
Mosgov or Draymond Green?
Tristan Thompson or Harrison Barnes?
Shumpert or Barbosa?
In the first half of the series (as I stated before):
Warriors starters (besides Curry) were 46 from 124 (37%)
Cleveland starters (besides LeBron) were 43 from 107 (40%)
They Cavs still had a higher FG% as a unit despite the Warriors starters having more open looks. The FG% margin would've been greater if the Warriors starters (w/ LeBron) had less open looks and the Cavs starters had more open looks (w/ Curry).
From top to bottom, the Warriors' players were MUCH better shooters and FAR better at creating their own shot than the Cavs players were. MUCH, MUCH better.
On paper they were, but the Cavs starters were MUCH better in the first half of the series. Better offense and better defense. The moment they actually started making open shots - the series was over.
You can't hide that. Nearly every point that players like Delly and Mosgov and TT scored was a direct result of something Lebron did, while Golden State had plenty of players who can make a shot on their own. And JR and Shump, the two guys in the Cavs lineup who can "sort of" create a shot, were absolutely horrific, shooting 31% and 26% for the series.
And every point that players like Draymond, Bogut, Green and Barnes scored were a direct result of something Curry did. In fact the Cavs role players actually had to create more for themselves when they were playing with LeBron because the Warriors' defensive scheme was more man-to-man as opposed to the Cavs' junk/halfcourt/top PNR scheme on Curry.
And look back and see how many times the Warriors players had open looks when Curry was on the floor.
And don't even begin to blame any advantages Lebron had on on defense.
Mosgov or Bogut?
Tristan Thompson or Green?
Shumpert or Iggy?
JR Smith or Barnes?
Delly or Klay?
The 3rd-best defender on the Warriors is a mile ahead of the best guy the Cavs had (other than Lebron). Warriors had FAR more defensive firepower to throw at the Cavs than the Cavs had in return.
Which just goes to show that the Cavs role players played considerably better on the offensive end, considering they outplayed the Warriors starters in the first half of the series despite not being 'offensively competent' against "more defensive firepower".
The Cavs defense was arguably better than the Warriors during the postseason. The advantages LeBron had on defense was the fact that his team had a great defensive gameplan designed to drive the ball outta Curry's hands and leave streaky shooters open. It worked more or less for the first three games, until the Warriors countered with bringing Iggy into the starting lineup.
You can't blame this on, "Ah, man, those Golden State players just were ruining things for Curry during those first 3 games!" Curry is the best player on the Warriors, but in the series as a whole, he rarely looked like the best player on the court.
You're speaking like somebody that didn't watch the Finals.
The Cavaliers are exposing the big problem with the Warriors' offense
If the Warriors actually made open shots in the first three games, we wouldn't even be having this conversation.
Switch those lineups, and Lebron gets the advantage of the switch in every. single. instance.
And Klay/Green/Iggy/Barnes and company would be making WAY more open shots with Lebron because....who the hell on the Cavs would be guarding him?
Maybe they'd just throw Delly at him.
The Warriors starters were missing shots when NOBODY was guarding them. The Cavs wouldn't be trying to trap/heavy hedge LeBron behind the 3-pt line in attempt to get the ball outta his hands before he had a chance to put up a three. They'd give him a shooting cushion and they'd stay on the shooters - so explain how they would have more open shots given all this?