Its honestly as if the writers created two characters to serve the same purpose, scold Dawn and act as Mary Sue's. They also both had the same monotone personality.

It was like Johanna was this big Contest winner but she scolded Dawn and yelled at her for crying. She would sit on that ugly pink couch in her house every single time we saw her as if she was permanently stuck in that position.

Then Zoey becomes, "Mom on the road," to Dawn, doing the exact same thing. Zoey was pretty dull herself once she got over her Gym/Contest grudge and didn't become interesting until the Snowpoint eps for obvious reasons.

Johanna was the worst mother ever seen in the pokemon anime.