Oh, balderdash!
I have extension cables in my garage that have seen abuse no human would survive, and they work just fine. No visible damage at all, and they're 20 years old.
Of course, they're made with many fine copper wires in each conductor and have neoprene insulation, as opposed to cheap thermoplastic and ten strands of heavier gauge copper-tin alloy wire per conductor.
You get what you pay for.
(or not) When I was a kid, we had these things called "telephones", made by a company named Western Electric. The part you talked into was connected by something called a cord. Constantly twisted, never replaced and always worked. It is perfectly possible to make a cable that will last almost forever.