For mark-room it is almost (99%) ALWAYS a necessary to have evidence of the state of the boats when the first enters the mark.  Making any conclusions without that information is quite tricky.  Your clip misses the crucial moment!

Anyway...

"Elsewhere, the rumbling feud between Spain and Canada - ignited by a collision in Saint-Tropez - was revived in Cadiz. Approaching the right turn on starboard, Canada had the right of way. But indecision by the Spanish on which way to turn to give Canada room saw them end up between Canada and the mark - with the Spanish F50 hitting the mark in efforts to avoid hitting Canada.

While hitting a mark in itself doesn’t result in a penalty, Diego Botin’s team was penalized on the water for preventing Canada from sailing their fastest course around the mark and also received 4 penalty points for causing minor damage to their F50. “This was a big error and hurt their event score badly, without which they would have finished the event 5th, one place ahead of Canada,” Mitchell said."

https://sailgp.com/news/23/unpacking-penalty-action-cadiz-match-racing/

Another couple of perspectives show what happened.

https://www.youtube.com/live/B3E9flLHLk8?feature=shared&t=3079

https://www.youtube.com/watch?v=0DF3G_2oDso

Hope that helps.

@ geometry dash scratch
Thanks for sharing videos. I recently re-watched race 1 of the AC in San Francisco. The longer, narrower racetrack was far superior IMO to what we have here. It required 4 or 5 tacks or jibes per leg, versus 1 or 2 here.