It is the classic "lifetime warranty", which ends up being defined as the lifetime of the product. The end of the lifetime is defined as "when it breaks".
This! My car has “lifetime transmission fluid” in it. Which translates to 150k miles. With change every 30k miles they’re known to last 300k+. It’s ridiculous.
Well, they could re-engineer the car to fail at 150k miles. Would you prefer that?
No? I'd rather they told us to change it every 30k.