Even if it was her on prospit, it's still a weird choice to show her differently in the pilot. It's supposed to work as an introduction of Homestuck and it's characters for both the old and new fans, and, well... New ones will expect something entirely different, and they know the old fandom was just dying to see the loyal portrayal of all characters in the animation. That's why they sneaked in the trolls, after all. Not a single side will be satisfied

Hopefully they do a better job in the future, but at the same time, we can't necesarrily expect them to stick to the original 1:1. If that were the case, we'd never see the end and I'm already curious on how they plan to cram all the content into what, 20 minutes episodes? Good lord. I just pray they don't rush it too much, it'd be a much bigger disservice to the characters than a bad tasting line of dialogue