That was some hand. I rarely like answering "what I would have done?" because we can see the hole cards and percentages. If I was Mateos, I don't know if I'd have the guts to continue - if I did, then the all-in was the way to go.
What did it for me was the turn. Lodden didn't really give me the impression that he had an Ace. Lodden must have been considering an Ace in Mateos' hand for sure, maybe even a possible 9, but especially an Ace. Then the River comes up an Ace! What a card. Obviously, three Aces beats a pair of fives, but Aces and nines also beat Aces and fives - so Lodden can't be thinking of anything positive coming from an Ace. Perhaps too ambitious for Lodden even continuing with the pocket fives for this long. Mateos did a great job with the all-in bluff, but let us not forget what a great job he did at "selling the story" that he had an Ace. That is what I think Lodden probably put his hand on.