Man, this is a terrible article...... Of course it's from the NY Post.
So, this article is using very specific wording to make a bunch of nonsensical claims. The most common, and the one every journalist makes about any powered upper limb " is controlled by the users mind"......... Well, how else do humans controll anything? How do you control your keyboard or mouse, how do you breathe?
The next big one is claiming that this is the first of it's kind, which is only true if worded correctly. It's not the first targeted Muscle reintegration, nor the first osseointergration. They're just the first to combine the two, but there's pretty good reasons why people haven't done so in the past.
Both operations require multiple teams of surgeons to work directly with teams of prosthetist. It also requires the perfect patient, an upper limb traumatic amputation that wasn't so traumatic to where it didn't damage too much soft tissue.
But the largest reason this won't ever be adopted to a larger scale is simply the prevalence of infection and the hardware rejection for both operations. Even in this study the radial osseointergration failed after 5 months requiring a revision, and the implant at the ulna failed after 3.5 years, requiring another revision.
Imo it's nearly impossible to prevent infections from forming around transdermal hardware given enough time.