"after an extraordinarily long mission"
I beg to differ.
Space missions have one of two outcomes : either they fail spectacularly before getting into orbit (or reaching their destination), or they successfully get to where they were supposed to go and then they outperform all expectations until they a) run out of fuel, or b) run out of energy.
It's only on good ol' Earth that projects fail all the time and get endlessly rescued (eh, UK Government IT ?).
Why ?
Because on Earth, you can send a peon you pay peanuts to do a minor (or even a major) repair, and it costs less than a Learjet trip over the Atlantic. Or maybe a Learjet, who's counting ?
But, to repair things in space, it costs at least a 737 Max.
And that is why we'll never have space-rated technology on Earth.
It costs too damn much.