Looks like LFS will be dropping some excess fat in its community. Good, I say. Anyone who can't be bothered to lift their foot off the gas for a moment to change gear shouldn't be playing LFS. Anyone who can't jab the throttle on a downshift shouldn't be playing LFS.
As for the tyres: before you could use R2s on GTR cars in endurance races, making the other options obsolete. Now you have some hotlapping/short stint tyres and some race tyres. Fit the right ones and drive. Oh, you can't set WR pace in a race because you have to take care of your tyres or drive on a harder compound? Boo, hoo. It's not all about constantly trying to beat your pb. It's about competetiveness over long distances. The GTR cars are meant for long distances.
Every physics patch, ever, has resulted in people going "it's too this, it's too that". And they have always been wrong: LFS has never had a bad patch.