Those seem like 3 good reasons to use Matrix.
Desoto racing has them in Stock
As for the misconception that sauce tires means there is no car setup well that's a very false idea.
A car that uses sauce takes even more setup because the car needs to work without it and with it sauce does not last a main so your car must work well off the sauce or when it is gone you'll be slow.
So unless you use it regularly you have no idea what it does or does not do.
I myself do sauce but I spend a ton of time setting my car up without it
My opinion is people have always done it going back years and years ago only now are others aware of it and following along balancing it out for everyone.
Desoto Racing, Serpent America, Novarossi, KoPropo, Xceed.
2011, 2013, 2 Time Midwest Series 1/8th Open, Champion
2011 Byrons onroad 1/8th Open 3rd
2011 Roar Nats 1/8th Open, 5th
2012 GLC 1/8th Open Q7 Finish 5th, 2013 GLC 1/8th Open Q4 Finish 7th