Given that it held up against 13 years of dedicated efforts by people with physical access to the device, many years after its successor was launched, it seems merited in this case.

This talk about some of what went into it is fascinating: https://youtu.be/quLa6kzzra0

I wish people would take statements in relative terms along with the whole context before attempting to refute them with a quick gotcha in absolute terms.

Obviously nothing is ever unhackable, not even Fort Knox, given infinite time and resources, and Microsoft never made such claims, this is just media editorializing for clicks and HN eating the bait, but Xbox One was definitely the most unhackable console of its generation. Case in point, it took 13 years of constant community effort to hack a 499$ consumer device from 2013. PS4 and iPhones of 2013 have also been jailbroken long ago.

Therefore, even the click-bait statement with context in relative terms is 100% correct, it truly was unhackable during the time it was sold and relative to its peers of the time.

In the very strict interpretation probably nothing is unhackable, just not hacked yet. But one should also be pragmatic about what "unhackable" means in context. Without the power of hindsight, a consumer device that stayed unhacked for ~13 years can be reasonably called unhackable during this time.