Is the Sparky birthday event the most unbalanced event ever

I know it's supposed to be a lighthearted event but for Yawgmoth's sake

The Gruul deck has 4 birds of paradise, 2 Nissa, and 3 red overlords The Selesnya deck has 4 Ocelot Pride and 2 great henges

... The ninja deck has only 2 mythic in total (kaito), and aren't even allowed to have go for the throat for some reason and is stuck with fell?????? The Izzet deck has no mythic and barely any rare at all??? The two drop is...emrakul's messenger????

What is this event balance lol