Correct, it's not like you're transferring 100% of the flex to the body, you STOP a lot of flexing. That is what you feel when driving now.
Same thing with the lower brace, it cures torquesteer massively..
It's actually quite strange they used a big "U" as a subframe, when all along an "O" is more rigid obviously. Maybe works on a Tipo 1.4 but I think not on a +300bhp Coupe.