Affirmative.
You can actually see me on the ridge in that video at 13:31 in the very upper left corner standing in a white top next to a guy wearing a dark top. This was when I first topped out and noticed them. They edited out my shouts of "Get your ax off your pack! Don't glissade with crampons on! ... Now you're holding your axe upside down!" The girl glissading was in front. The one who lost her ax was behind her.
Comments on the video are disabled.
I wonder if these people actually google technique after being advised by strangers on the mountain or if they just don't care.
Oh well.