Were Illegal Plays Made in Top 4 Matches of DLC Seattle 2024?

Hello fellow illumineers,

With the Infinity Format DLC (Disney Lorcana Challenge) approaching next month, I have started reviewing gameplay footage from previous DLCs. I am looking to relearn interactions and abilities of older cards that are not currently legal for the Core Constructed format.

During my exploration of previous DLC footage, I noticed what appears to be an illegal play made in a streamed top 4 match from DLC Seattle:
The turn player, Luke Goodwin, has the following characters in play: Prince John - Greediest of All, Beast - Tragic Hero, Diablo - Devoted Herald (exerted), Morph - Space Goo, and Pete - Games Referee.

Luke exerts the Morph - Space Goo to sing Sudden Chill (6:44:05). His opponent, Logan Schneider, discards Maui - Hero to All when Sudden Chill resolves (6:44:07). Luke then draws two cards (6:44:08).

I understand that Prince John's ability, "I Sentence You" allows Luke to draw a card whenever the opponent discards 1 or more cards. I cannot figure out where the second card drawn comes from. It appears that the second card was drawn illegally. Am I missing something?

Cards mentioned above:
https://lorcast.com/cards/2/89/prince-john-greediest-of-all
https://lorcast.com/cards/2/173/beast-tragic-hero
https://lorcast.com/cards/4/70/diablo-devoted-herald
https://lorcast.com/cards/3/81/morph-space-goo
https://lorcast.com/cards/5/195/pete-games-referee
https://lorcast.com/cards/1/98/sudden-chill
https://lorcast.com/cards/1/114/maui-hero-to-all

Video (6 hours, 44 minutes mark): https://www.youtube.com/watch?v=FgQ8DKDB67E&t=24240s