Actually, we're applying patterns to the Nintendo marketing teams. Who are far more predictable and have acted without Sakurai to disconfirm characters at several points.
From a marketing standpoint, this entire tease makes no sense if Ridley isn't playable. Revealing him at a stage boss a year ago would have been poorly received, but would have been seen as just a tease and a disconfirm. Most people would move past it.
Teasing the fanbase for over a year, giving them no official word for that long, then dropping the "boss" reveal on them just as the game releases in Japan, would hurt the game sales. You're going to argue "oh, no one would actually give up Smash for that". But they would. People would feel mocked, betrayed, and humiliated by Nintendo for over a year, and they would have that feeling right at the worst possible time, directly before release (when it's out in Japan, but not over here). Not all, not even most of them, would boycott the game, but there are definitely going to be a small minority that are going to be so upset at this ****ish treatment by the entirety of Nintendo that they will boycott the game. It's going to happen, any marketing expert will tell you this, and it would be entirely Nintendo's fault, and easily avoided if they had bothered at any time to actually explicitly state anything.
This is part of why the explicit statements exist. This is why NINTENDO, not Sakurai, will come out and tweet that "oh, this character is actually not playable". Because they do not want people getting their hopes up at an ambiguous position, only to have those hopes crushed at the last possible instant, and the worst possible time for Nintendo.
In fact, while we're at it, let's point out that Sakurai wasn't the only one who performed the tease. The tease was made in a Nintendo Direct presentation. Despite what you may think, that's not just Sakurai sitting in front of a green screen going on an unscripted ramble. The marketing team and Nintendo undoubtedly reviews those, checks what scenes and images to pair with them, okays them for quality, works on scripting alongside Sakurai... You do realize that Sakurai is not the only person responsible for this game, right? Nintendo has huge teams, both in Japan and in America and Europe, working on these games. It's not just Sakurai, at any point.
Then too, Sakurai has specifically stated that he dislikes this situation personally. That he dislikes people getting hopeful, then getting their hopes crushed. Which, again, feeds in to his attempts to always clarify the fighters positions during every reveal. So even if it was just Sakurai, we would have reason to believe the obvious patterns in the behavior.
But since you're criticizing us for finding patterns, it seems your entire argument boils down to "Ridley breaks the pattern, Ridley is disconfirmed". With that "logic", I'm not sure there's any point in discussing this any further.