And getting a bunch of dates wrong.
And missing Rosalina.
And missing both Lucina and Robin to add insult to the Chrom injury.
And the leaker basically disappearing from existence right after the Lucina and Robin reveal.
You do realize that the Gematsu Leak was likely early planning documents and not a crystal ball, right?
The "dates" given were "these characters will be shown at E3", which ended up true for Mega Man, Wii Fit Trainer, and Villager, as well as Miis and Pac-Man the following year. Little Mac could have been planned to appear at E3, but was simply shown on another date as a need for showing another character. A sudden need to reveal Little Mac would explain why his trailer is stylistically animated rather than three-dimensional like most other newcomers' trailers are. It certainly didn't feature the same quality as Palutena's trailer at the very least. Still, all of that is avoiding the point. There were
plans of when to reveal characters, not set dates. Gematsu never gave us
dates.
And how on earth would he miss Rosalina if she was never to be shown at E3? Between the characters shown at the first E3 and the Smash Direct, Gematsu had never even made a statement. The point of Rosalina is moot in that by the time he would have had said anything about her, she'd have already been revealed. There's nothing to state that Gematsu wouldn't have listed her had he actually said anything around that time.
Rosalina is a strawman, in other words.
It's only been two months since Robin and Lucina. The leaker disappearing between the first E3 and Smash Direct,
which was a lot friggin' longer than 2 months mind you, didn't make him any less accurate when he called Wii Fit Trainer and Greninja (who literally did not even exist at the time of Sakurai's decision to include him, hence only being called "Pokemon X&Y character"). As for the characters themselves, it was literally stated by Sakurai himself that Lucina wasn't even
planned as a character in the first place and that Chrom was originally the chosen character before they realized just how bland he is compared to Robin. The documents planned for Chrom, but the reality was Robin and Lucina. Do you not follow?
Honestly, why people doubt Gematsu, I don't understand. The leak thus far is
outdated, without a doubt, but that doesn't mean it's incorrect. The fact that it has predicted things revealed behind-the-scenes of what we've gotten should make that apparent, were Villager, Wii Fit Trainer, Mega Man, Little Mac, Greninja, Palutena, Mii Fighters (down to the name), Pac-Man, and Shulk not enough. This is not even mentioning the fact that various sources are stating that Chorus Kids will be a character (further cemented by the Sneaky Spirit's existence as an enemy in Smash Run). There's plenty more to say Gematsu is real than not.
Again, outdated does not mean false. Like it or not, Chorus Kids are planned at the very least the way Dixie Kong and Toon Zelda were, if not DLC or a hidden character outright.