If he just does exactly what he has been doing his whole career he wouldn't need to do any type of increase. He wouldn't even need to pass more if anything he should be passing less.
I have already and others have stated why this is a good shot. Let me repeat why this is a good shot. It creates more opportunities for Giannis, Middleton and Lopez. It makes the defense actually come up from the paint and guard Dame. It means you can't sag off defensively from Dame and create that Giannis wall of defenders. This shot helps create more spacing to allow for others to score. The reason why Curry creates so much offense is because teams have to guard him from half court to the perimeter. Players like Dame and Curry create more offense because the defense has to protect further out. It creates more favorable match ups for your other players who don't have the range.
Making the defenders come out of the paint and having to guard Dame at the perimeter is what you want to happen as it makes it easier for Giannis to get to the paint where he is more effective. You have to keep the option open and allow Dame to shoot those shots. You don't have to score every time on those shots you just need to make the defense respect those shots. Those deep threes are what will make Giannis better and will generate far more offense for Giannis than not shooting those shots will.