You need to understand the difference between a contractual warranty (what Winspace chooses to put in their terms) and a legal warranty (the minimum protection consumers have under the law, regardless of what a company prints).
A contractual warranty can limit coverage (like “3 years on frames, 2 years on wheels”), but a legal warranty covers situations where a product was not of “satisfactory quality,” “fit for purpose,” or “durable as reasonably expected.” Even outside the written warranty period, if a part fails prematurely in a way that shows a defect, the manufacturer can still be held responsible under legal warranty.
Now, are you seriously suggesting a seat post clamp is a “wear and tear” part?
Conclusion: It is well within the contractual warranty and even if it was not, it would fall under the legal warranty.
That’s like saying a stem or handlebar should be expected to fail after two years, which is absurd. Consumables are tires, brake pads, chains, not a structural clamp holding the seat post.
And as for me “still going on”.... I’m only replying to posts like yours

Finally, regarding the legal action / compensation point, it’s actually working out perfectly. By rushing to defend Winspace, with a lot of energy but not much argument, the loyalists are keeping this post alive and giving it more visibility. Even better.