Yep, we're on the same page.. that is bizarre, I have never seen that..

Was this clearly communicated to S&W? I only ask because terming this a stove-pipe is a misnomer.

The result is a stove-pipe, but the manner in which it occurs is atypical and feel most avid shooters would agree.

You may be correct about the mag/mag well issue, I wonder how widespread this is and what fix the YouTuber is exploring (comment section).