I am really surprised this didn't kick up

Interesting that the folks that support 'what is he smoking Tony' could not come up with and write on this forum an explaination of the work hardened welds and how adding sub frame connectors adds stress to the existing unibody chassis.

Since you can't, I can list out a simple visual that shows how inept "what is he smoking Tony's" thought process is on this subject.
1) In your mind visualize a common 2x4, ten feet in length, that has each end of the 2x4 suspended on a cement block.
2) Now in your mind, add a common bathroom scale between the 2x4 and the cement block at each end of the 2x4.
3) Now position the 2x4 so the wide cross section of the 2x4 is horizontal and parallel to the ground that the cement blocks are setting on.
4) Then position your body so you stand on the 2x4 centered between the two cement blocks.
5) The 2X4 will bow down due to your weight.
6) the combined weight on the two scales will be your weight + the weight of the 2x4, regardless of the bow, unless the bow is so large it contacts the ground.
7) Now get off the 2x4 and re position the 2x4 so it has the narrower side horizontal and parallel to the ground.
8) Position your body so it is centered on the 2x4 on the scales on the cement blocks.
9) The same 2x4 will bow less than it did in the previous test, due to the more rigid cross section of the 2x4 bearing your weight.
10) The combined weight on the two scales will be your weight + the weight of the 2x4, the same as the test in #6, even though the deflection
is much less.

The point of this exercise is that, for a given load, reducing deflection does not increase loading at the end points. Deflection and end point loading are two different issues. Reducing deflection is good in that reducing deflection does reduce the possibility of mechanical failure due to bending fatigue.
Visualize , how many times do you think that you can jump up and down on the bowed 2x4, from the first example before it breaks.
And how many times can you jump up on down on the not as bowed 2x4 in the second example before it breaks. The truth is the not as bowed 2x4 will survive a lot more stress cycles than the bowed 2x4, with the same loading.