Wormadam-Sand Soloes Julia
So I caught a Burmy just for completion's sake and I said: "Let me see what it can learn... HOLY S**T!".
Upon evolution Sandy Wormadam now (Gen 7) learns Quiver Dance. I also got one with Hidden Power Ground. You can see where this is going, right?
My battle with Julia started with her sending out Plusle, then kept spamming Quick Attack while I was spamming QD. It even hit me with Encore, forcing me to go do it 4 times. It went ballistic even on her Oricorio with my non-boosted Bug Bit
I understand your point, but I personally disagree. Pokemon are going to naturally have stronger matchups than others. For example, Marshtomp effectively walls Julia, especially if it's ability is Damp. That doesn't mean it shouldn't be a starter. Similarly, not many people like Wormadam. People aren't going to naturally flock to it.