I guess I'll start with the good point because there's some points you deserves credits for.
First, THANKS for not mixing want and expect. I saw way too much people doing it and I'm glad that you're not one of them.
Second, at least you went there. There's just a little thing that I need to talk that I had a little issue with...
There's only one argument I heard that was slightly mentioned here that you did mentioned: the trophy theory.
Here's the problem: the theory alone is based on other tease that isn't really in the same category as the 10 seconds. If you want my honest opinion on it, it doesn't holds any logical evidence to back it up so I don't have any reason to believe such things.
But those 10 seconds?
I'll tell you why it would contradicts Sakurai of teasing as boss.
First, you acknowledged his appearance in brawl. Teasing him doing the same thing would literally be nothing new does that feel weird to be teased anyway?
To tell you a personal example, that would be like teasing the Paper Peach trophy. That doesn't make any sense and the trophy was just showed like many others.
And second, because 3 confirmed cases happened the same way and it ended playable (there's another one that is happening since July 29, but I'll let you figure that one out).
Little Mac, Palutena and Greninja. All those have one thing in common: a stage was revealed before their confirmation in which the character was particularly related to it. Sakurai omited to be clear on a crucial information on purpose and all of them was who actually this stage is for?
Boxing ring: not clear, but people implied global EXCEPT supporters who got punch out reference (trust me on this one, I was lurking on Little Mac's thread, that's what happened).
Palutena's temple: not clear so people implied generic kid icarus or pit EXCEPT supporters who got that this stage being centred on Palutena without her would feel weird.
Greninja in my knowledge, almost no one got it, but it was implied to rep the series in general while it was to rep the 6G.
August 20 isn't clear on what Ridley do here so people would imply hazard (he talks about him being in a boss fight in the caption, but canon). EXCEPT supporters because seeing the same location where you actually fight him and not seeing him would be weird.
What solve the question is the direct: if he was hazard, he would've been showed before (that, I can literally provide you dozens of evidences).
Won't continue because you already read about it (at least you told me).
The thing is, you shouldn't have any regrets on making this video and actually, I'll even go as far to say that people in this thread should be ok with this video (that contradicts my post, but I'll explain).
See, I know his pattern now. I know because I'm living it right now. On this site, I'm probably the biggest Paper Mario supporter out there. So, you might have guessed that I was hype Tuesday, but now, I realised it was a tease.
I will not elaborate on this, but I can tell you one thing: the first to consider was me and supporters (I own his thread, I can confirms you this) and the first to deny it was the non supporter / dislikers.
Why? because you need to care enough to even check the evidences deep enough. Same with every cases now, but Ridley...was designed for his fanbase.
Even the direct made some people like you made the same thing: stop expecting him. Is that ok for such a determinate fanbase? Yes.
What I want to tell you is that Sakurai do his tease by selecting his target which are the most determinate supporters of a character. If he knows how Ridley fanbase is solid, he will do a very cryptic teasing to make the most people misleads, but not enough for us to get it.
So, you may like Ridley, but maybe the tease was too much and so, you denied it. It may have to do with your determinations or how much you care about him, but you weren't alone to do the same thing.
So, I hate to say this, but you weren't his target. The tease will not work on you, but that's a good thing because when it will be revealed, it will generate more hype and in the meantime it happens, your video will generate speculation after talking with the one that were targeted and got the tease.
So, thanks for making this video, you may not know, but it helps his case.
If it sounds unprovable, it's because it's not something I expect you to understand if you didn't got his case. What I can tell you is that since Tuesday, I think he's almost confirmed (I actually already posted my explanation here, but if you disagreed with the essay, you will here so would be wasting your time to read it).