Great example. DD was at an exposure camp today. We set up and next to us arrived a girl that was a 2021 like my DD. But my DD is 5' 6" and this girl was 6" easy, both same body type except the height. I was excited to see her throw, she was wearing a Jersey from a bigger org in our area. When all was said and done I heard she threw 54 on the radar that they had set up. DD hit 59, 60, 58 on FB and her other pitches were nailed. It was the best I've seen her in a long time. Coaches did give DD some love but nothing like the love they gave the taller kid. I didn't say anything to DD about it but in the car she said "I guess they like tall girls". I guess in a way I probably would have given this taller girl some attention as her mechanics were poor and she used little leg drive. That said it's frustrating to see it in such an obvious example.
This is why my DD doesn't go to exposure camps unless a coach specifically asks her to. Looking the part matters too much in that environment. It often doesn't matter how well you play or perform.
Fortunately there are many, many other ways to get on coaches radar.