No, the article specifically mentions that some parts appeared to experience the opposite of accelerated aging. Presumably that means the “parts wore out more slowly”.

You might be interested in “hormesis”, a vital aspect of Life’s resilience, in which (some) stress improves a system.

It’s more like “stress the part and that part will change its internal maintenance processes, with some ripple effects across multiple parts”. They didn’t even find a consistent stress=aging pattern across multiple tissues.