Considering that TF generally portrays things to the effect of "not going to happen" (he rarely talks in absolutes like "never" but the message and overall narrative is rather clear) releasing the product in any capacity already proves him wrong.
And yes the Roadster remains the only big thing left to latch on.
You literally said it yourself.
C'mon we already established that you know full well TF is full of shit even if you're not willing to call him out explicitly and publicly.
What I meant is that he used to sell his bullshit more cleverly, telling a lie by weaving a more complex narrative, conflating things together, fudging numbers and using all sorts of other trickery to make his points.
It's the same way how snake oil salesman or influencers walk the line of what's legal to say when promoting their bullshit products without being explicit in for example making medical claims.
As things got more desperate he just started putting less and less effort in selling his bullshit.
To be fair, debunking stuff falls into two categories:
1) It's complete BS/pseudoscience and will fail based on the laws of physics etc.
2) It's never going to be a success because it's not going to be practical.
To my memory TF has never been wrong about 1, and has only been wrong about 2 once (Starlink).
The rest is either still up in the air, or just an "I hate Elon" rant.
Even about 1 he's been disingenuous in making his points, for instance in his video about the finding of phosphine on Venus he first presented the data (the spectrum) in a dishonest manner (basically saying that since no difference could be seen by looking them side by side the paper was busted as if that was the method the researchers used and not complex statistical analysis), there's a Doctor Becky comment under that video that highlights these issues (see screenshot of it below).
He also later in the video stitched together clips from other content creators making it seem they where blindly on board the idea of the presence of phosphine and its implications (I recall Periodic Videos being the most egregious example).

This ties perfectly with my very first post highlighting that it's not just about Musk.
But anyway, Starlink is far from the only thing he's been wrong about outside your point 1
Here's how he portrayed Falcon 9 reusability back then:
https://imgur.com/a/AJAzAZIThat's a perfect example of what I meant, he didn't literally say SpaceX would never reuse it, he "clowned" it instead.
And I use clowned as a shorthand for his typical MO of exaggerating how hard something is to do (while also portraying SpaceX or Tesla as incompetent to reinforce how hard it would to do the thing especially for them) or his usual ranting about "Musk promises" to just throw the new thing on the pile without even making a proper specific argument for it, or any other similar tactic that avoids speaking in absolutes but enables him to still lie and sell the same bullshit narrative.
And guess what Starlink was treated just the same:
https://imgur.com/a/i9pIMFlAnother example of the same type of tactics is when he conflated Superheavy with N1 just because Superhevy has 33 engines.
And there's a very large pile of such examples, pretty much every Musk company product has been treated the same way at some point (because he can't acknowledge anything positive).
The directionality doesn't matter if they fail. All 4 of those things could very well fail to be successful.
In fact many people say that Cybertruck is, apart from a brief flurry of publicity and "trendy" and people wanting one, has already become a complete market failure.
The verdict is still completely out on 3 of them.
It matters if the narrative is to the effect of "not going to happen" or "it's vaporware" or "it's fake" and then the thing happens.
The Cybertruck was treated same as the Roadster is treated now and then it was released to the market, that alone is sufficient to disqualify thunderf00t narrative about it.
This is especially true given the fact that he never really revises his predictions or assessments (busting) on something.
In other words if you believe the "thunderf00t bullshit universe" you have a completely distorted view of reality...directionally opposite if you will.