You couldn't be more wrong if you tried and you're confusing statutory rights with Consumer Law claim periods.
If you click the Apple link you provided, you will see that Apple's warranty is
1 year (even Apple put it in
bold.
If your device failed after (as an example) 13 months and Apple refused to repair/replace it, then in the UK, we have the legal right to make a **claim** for up to **SIX years**.
Note the word CLAIM.
What you would have to do is have your device independently inspected (at your own cost) to show premature failure.
You then log a court claim and take Apple (or whoever) to court to put your side in front of the judge.
The judge will almost certainly agree that failure of a £700 device is unacceptable and make Apple cover all of your costs.
That's it, what I have put above is factual and legal.
What you are describing about Apple repairing phones purchased in the UK absolutes makes a difference, because your legal contract always lies with the RETAILER you purchase from (in your case Apple), so they have clearly taken the decision to repair, rather than refuse and risk court.
However, be under no illusion - Apple (or any retailer) can LEGALLY refuse a warranty **CLAIM** (because it's no longer a right over 12 months), but many times it's not worth the bad PR and the knowledge that they would be forced to cover it in a legal decision.
As I said , you couldn't be more wrong in your "knowledge" if you tried and you shouldn't mislead people.
From your own link - Note the 3rd column where it says (and I quote)
"
1 year from date of purchase"
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