Yeah, I noticed it said it on the Wiki, but the Wiki doesn't point out the inconsistency in the timeline, which is mostly what this post is about, haha.
However, I did recently start playing my sylvari Warrior and she could use a very cool armor set or costume (hint, hint) and I'd wear the heck out of that Melandru elite-form if they offered it (which there's precedent for since they've recycled a few of the other Dervish elite-forms for gemstore costumes already).
Edited to add: And yes, I agree that it's most likely just Anet reusing existing resources to save time and it *is* half-right: Awakened Amala being modeled after a sylvari when we meet her in Istan isn't weird or inconsistent - the Sylvari have been in Tyria for 30ish years at that point. Mostly I'm just poking fun at a bit of trivia I noticed 3+ years after the release of that fractal, lol.