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As I understood the article, it was printed with thread derived from human* (fat cells) tissue that was convertible to stem cells - and thus - although not a natural heart, it would if fully successful be actually incorporated into the body and I presume not require a lifetime of anti-rejection drugs. Like the framework used to produce replacement gall bladders using stem cells - but no framework required and allowing far more complex shapes
You have emphasized in your interpretation the "Artificial" - describing the nature of the product when it is the method that is being emphasized. If they left out 'Artificial", someone else would complain that it isn't a heart - just a copy.
* The plan was to use the patients own tissue to derive the basic raw material
The Beer Prayer - Our lager, which art in barrels, hallowed be thy drink. Thy will be drunk, I will be drunk, at home as it is in the tavern. Give us this day our foamy head, and forgive us our spillage as we forgive those who spill against us. And lead us not to incarceration, but deliver us from hangovers. For thine is the beer, the bitter and the lager, for ever and ever. Barmen.
There used to be a youth hostel in Wales that was an old castle, still in working condition with limited amenities. I remember walking the halls where I had to turn sideways and the floor had humps in it high enough to trip over. It did not take much of an imagination to visualise the life style of those days. Romantic - NOT -
Never underestimate the power of human stupidity -
I'm old. I know stuff - JSOP