Yeah. I personally also underestimated it severely when I started playing it myself. When I had a streak of 5 wins on turn 5, two of them through a single Clot, I couldn't believe how explosive and swift the deck could be.
Dyers post on the decks is spot-on. The main difference between playing these two is that DrawCI7 seems more resilent to hate, while 7Penguins often wins earlier.
-1 Hasty to play 2 (like I did at Euros) and -1 Shipment from SanSan, +1 Biotic (which is basically a SfSS in an AD pile except it costs 6 extra credits) + 1 flex spot (probably a CVS). It means that Siphons matter more, since you're more likely to need 10 credits rather than 4 for your basic combo, while also slowing the deck down a tad and making it harder to do these crazy Hasty-piles that end with UVC.
It would definitely matter to have it as MWL1, but the Whizzards deck there were popular at Euros basically do not gain any extra tracton. Ideally, however, we'd also see Moons as MWL3 (which kills 7Penguins but not Josekis deck).
Can we not just ban AD? Like, what good does it bring!? I love it. I love playing 7Penguins, and playing it at Euros was a blast. I like cards with rules on them, enginebuilding and a machine that churns - but it's unfairly strong, and in general a negative play experience, especially when you're playing deck that isn't teched to win against 7Penguins.
Ps. the deck did just win Spanish Nationals this weekend. It's not gone from the surface or anything.