...and I'm just now finding out Heather winning World Tour was not canon.

Very disappointing. Not that Heather is my favorite character, but the entire season had built up the finale, with Heather trailing behind Alejandro. It was far more satisfying from a narrative perspective to see her finally get the better of him at the end and then win. Especially since this was the first (and so far, only) finale that had been properly built up to. Owen and Beth making it to the finale in seasons 1 and 2 respectively was anticlimatic because neither behaved or seemed like real competitors. Ditto the finale of Revenge of the Island (though little surprise there, since the season was too short to really build up any proper rivalry).

Plus, Alejandro's victory only came about because Heather made a stupid mistake. That just adds insult to injury.