I don't know why I bother... Maybe I like you too much:
Mega zoom LEC v VER:
You can see Max's throttle trace isn't 100%, maybe 98%, in fact it drops right when LEC's speed is passing above his. LEC goes full throttle after Max is off throttle and on brakes already.
I don't think the throttle trace is very linear and I think there's still space after 100% that we get no resolution on. On top of it your statement that Max was 100% is factually incorrect as clearly Ferrari keeps the throttle down, goes on later but stays on later.
Not only this shows a different interpretation of the corner, but clearly Max can push the car a bit more.
As I said already, this has nothing to do with engine mode, just Max not pushing.