It appears that the Chinese Taipei HGG team has been disqualified for stream sniping in their recent match against Singapore. You can view the match VOD here, but it looks like the video that Chinese Taipei uploaded to Blizzard is what caused the disqualification.
Read the official post from Blizzard:
All administrative decisions related to tournaments governed by Blizzard’s official Hearthstone rules can be found here.
The Chinese Taipei Hearthstone Global Games (HGG) team has been disqualified from the Hearthstone Global Games competition.
Following the Chinese Taipei vs. Singapore match, the Chinese Taipei team uploaded a video of their gameplay. Upon review of the video, and after reviewing in-person statements from the players, the Hearthstone Esports team has determined that members of the Chinese Taipei team used the delayed tournament broadcast to aid them in a decision during the game. This behavior is prohibited in our tournament rules under section 7.11a. Specifically, players are prohibited from “[s]tream sniping, or any general attempt by a player to spectate his or her own match or get information from another person spectating the match.”
Based on the timing of this disqualification, the Singapore HGG team will advance in place of the Chinese Taipei team to the playoff stage of the Hearthstone Global Games at BlizzCon.
To add further info… Blizz found out that by rewiewing the recorded audio from the taipei team. Shaxy knew their opponents didn’t have an MC tech because he saw ealier that they discarded it from tracking.
thanks for the additional info! 🙂