I don't know. Only 3 examples really and the KC player looked to me as though he went in more facemask first than crown of the helmet. Or maybe they mean the contact to the ducking player's helmet? Another "catch rule" IMO. Will take a season or 2 and we still won't have a clear idea what's a foul and what's ok. Constant debate and complaining over was it legal or deserve ejection or whatever. Not a good sign.
That video shows nothing that is legal though. This is going to be a horrible rule and when players start getting ejected for ticky-tacky calls, there's going to be an uproar. This is nothing but a controversy and will be a story every single week in 2018. Can't wait to see the first kicker or QB get ejected on a kickoff return or turnover because they have no idea how to tackle...lol.
Necropost just because I'm tired of seeing "Let them Goaltend" on the front forum page!