I didn't learn to ride a bike until probably 10 years old, but my parents didn't allow me training wheels at all. I learned on an adult 10 speed racing bike. And I wound up using a mountain bicycle for transportation for nearly my entire 20s.
Anyhow, I do recall my parents saying training wheels just teach bad habits.
I don't know if I see a full similarity with that and SRF. But I do think it's harder to really get the most out of SRF if you're used to having it off.
I think SRF is more for people who are looking to play a racing game in a type of arcade-like way with faster cars that require a lot of nuanced control.
And that's not wrong of course, if that's what you want to do.
But it will make a handful of a car easier to drive faster without spinning out. There's no doubt about that.
SRF is about stopping skidding after it's too late!! (Or should've been too late to recover from.)
SKID RECOVERY FORCE.
IE: a force that can have you recover from skidding out after it would've been too late !!
As for traction slowing you down in the corners.
Yes, traction control, will definitely slow you down in the corners... Pumped up to the default 5 on some cars, you'll wind up feeling like you're in a time warp mid-corner.

But traction control is different than SRF. They're 2 totally different aids altogether.