Yep, seems that way.And this goes to my earlier point regarding, 'UDs could just be a matter of manufacturing tolerances or wear or whatever making some more 'loose' and prone to UDs while others are fine.'
My lightly-used (500-1k rounds) P320 has nowhere near the amount of play between the slide and the rails that the P320 in that now-famous video does.
Saddens me for Sig to have to deal with this. I liked my P320. We'll see what happens.