You obviously haven't seen episodes 10 and 12, Derpy is back in full force. Which I am entirely grateful for. She's my favorite pony! That being said, I agree on the name Then again, Hasbro's sub of "Ditzy Do" isn't any better. Hasbro's mistake was with the voice that gave her that one time they let her speak. They should have let stay quiet or else picked a less dumbed down voice. Those of us who love Derpy, do not view her in any degrading way! Actually, even with the way they voiced her, my personal opinion is that they should have had MORE, because it could breed love and acceptance for disabled kids. But with a different name. I think this is kinda what they're trying to do with Scoots inability to fly.
Vinyl Scratch is officially named DJ-Pon3, so I don't see why they can't come up with a reasonable and respectable name for Derpy.
Also, EG wasn't straight to DVD. But it was in a very limited number of theaters