Don't worry, Twilight. Hyprocritical rabid Bronies (not the sane ones, who actually do love and tolerate) are always like that: Something new is announced (Twilicorn, Equestria Girls) and they're like: OH GAWD THE HORROR IT'LL BE AWFUL I HAVEN'T SEEN IT YET BUT IT JUST HAS TO BE LET'S MAKE PETITIONS TO STOP IT. After it happened: THAT WAS AWESOME! I LOVE IT
This was always my question for human versions. If they have wings they are pegasi. Normal humans are earth ponies, and unicorns always had me baffled and I thought just having a horn would be well... redundant. So the elf ears are (to me) a very clever idea.
I'm sure in some kind of Equestrian law of decency, that line could be classed as verbal treason. Someone please banish that alcoholic pink, non-pinky pony and put her in a dungeon in the place where's she's banished to.