Well, judge for yourself, I edited that video in two minutes (I had recorded samples of both firmwares last Saturday) :
Forget the single pickup positions as on 1.90 I stack two pickups, listen to the differences in the "quack" positions (2 and 4)... I recorded the two videos under the exact same conditions (same preset on the Axe Fx, same volume as it was an USB recording = no record level). I put the two clips one after the other, absolutely no sound editing.
1.90 is the perfect Knopfler sound I associate with a Strat
2.0 is not - but I like how the other guitar sounds.