I'm just catching up on that incident. Bizarre.
I'm not sure how the refs can reasonably infer that Pavelski was injured by the crosscheck, as the crosschecking contact was modest (hence, no call in the moment) and he was clearly bleeding because some interior portion of his helmet cut his head (and, Lord, do those head wounds bleed).** It was as terrible a call in as big a moment as you could fear in the NHL SCP.
That said, the Vegas PK just melted down there.
I'd venture: What was worse - the call or the PK performance? I'd say the latter.
** I reckon an argument could be made that he cut his head like that because he fell from a crosscheck. But, again, the crosschecking contact was not a problem when it occurred for the official closest to the incident. (See below)