Why Zombies are not OP

I'm sorry to tell that to you, but in team vased shooters, team composition matters. For the Zombies, it doesn't seem so important, as every Zombie has at least one powerful damage ability and they deal a lot of damage in close range fights, which gives you the illusion that they don't need to work together. But even as the Zombies, team composition can have a huge impact on the outcome of the game. The Plants are clearly less effective when fighting in groups (Citron and Corn being the exeption), but they are so much more effective when playing together (granted, this happens almost never in pubs, but when it does, RIP in Pepperoni Zombies). And than theor is just this thing called counter picking. The enemy team stacks up on Imps, Scientists and Super Brainz? Better use Citron and Rose to counter them. Footsoldiers and All-Stars? Corn and Chonper will rip and tear trough them. Deadbeards and Engineers murder you? Cacti and Peashooters are the answer. The Plants stand more of a chance to win if they counter the Zombies, or at least, they will get some kills. But wait, counter picking means you need to switch from your beloved Corns. What a crime against human rights.