So I saw a famous streamer fight a bot, and the bot silenced a deathrattle zombie chow, that would have healed the bot 5 hp. So obviously that bot doesn't differentiate between good and bad deathrattles. There are multiple enemies like this. Dancing swords is an example. In order to balance some cards from being too op, HS has those cards buff opponent. I think it's possible that our bot could be using cc on favorable buffs.
The bot knows the differentiate between "good and bad deathrattles".... If you see any problem at your bot, attach the logs please, and problem will be solved.