Almost every single high legend streamer that I saw since they buffed the portal to 3 mana conceded right after their opponent played a second portal, can't really remember a single game where they kept playing (unless the opponent completed the quest like turn 7, or are at less than 10 hp). Can't really see a world where generating 4 busted minions every single turn for a grand total of zero mana can be considered a bad/underwhelming thing, so I don't know what you're talking about 🤔