I think you're right. I went back and looked at the decks I had that faced off against Superfriends.
Captain Sisay,
Edric, Spymaster of Trest:
These decks were the first time I went against Atraxa Superfriends. I had heard that the deck was powerful (enough that one person said he wanted Atraxa banned), and the person I was about to face off against said that it was one of the most powerful decks in EDH.
Naturally I was excited. Everyone else also used what they considered to be their most powerful decks. So I used
Sisay first... and wiped the floor with them. The game wasn't even close. I figured that
Sisay was too fast for them, so I switched down to Edric. Again, too fast. I felt a little bad about this, but at the same time, if you claim to be using one of the most powerful decks, I expect you to live up to it.
Kynaios and Tiro of Meletis:
At a later date I got to go up against the same Atraxa deck. K&T was my weak combo deck, so I figured it would be a fair match. I did eventually combo off and win, but I got to see more of the deck this time. It does seem like it takes time to set up, and could get crazy powerful if left unchecked. But isn't this true of all decks?
Krenko, Mob Boss:
This was against Aminatou Superfriends, and the person piloting it also claimed it was a broken deck. I was skeptical this time so I used a weaker deck. But by the time they could play a Planeswalker, I was getting my goblin tokens out. So it wasn't too hard to just attack the Planeswalkers (mostly Aminatou) to keep the deck down.
The Scarab God:
First time I lost to Superfriends. I didn't have any enchantment removal, and neither did the other two green players (one of them even said that he doesn't use enchantment removal). Because the
Doubling Season stuck around, it was really easy for the player to cast a Planeswalker and ultimate right away. But this was a slow game.