It’s funny, I looked at how he spun and thought that was evidence that he got a big chunk of body instead of just head....
If he'd gotten a big chunk of the body, he wouldn't have spun, but have flopped backwards or Wilson would have stood him up. Wilson only catching part of the body would force it to spin.
Take a book out put it flat on the counter and flick the very corner of it. How much does it spin? (note, if it doesn't spin at all, get a smaller/lighter book or flick it harder! ) Now do the same thing to the very middle of it... now how much does it spin? The further out from the center you get, the more spin you get.
Now look at one of the freeze images that someone took/provided from right before the hit. Sundqvist's hips are aimed more or less towards Wilson, but his upper body is angled towards the net. If Wilson is hitting right through the shoulder, it would pretty much be through Sundqvist's entire body - there's little chance of him spinning all that much. That can only happen if the body contact is minimal - that's simple physics.