Momentum building opportunity though
There's no point in Sinner banging his head against the wall for YEC. If Alcaraz does poorly and Sinner goes on an insane tear then he'll get it. But it's not worth overplaying for. It's very likely Alcaraz gains points in Turin anyways (not to mention all the other tournaments like Paris).
HOWEVER, all tournaments are connected and I think Sinner should focus on playing just enough where he chips away at the point difference slowly to enter striking distance by AO 2026. At that point, AO 2026 is essentially a very critical slam for Sinner anyways so he'll have to do well (ie. win it) anyways.
I think Sinner should skip Davis Cup this time tbh. Vienna also probably worth skipping, rather he plays Paris.