At that point, what even is the purpose of defining it? It's such a specific term that was designed to only apply to their hardware. It's like creating a new word for a car because you added air conditioning to it.
Sure, they had the first GPU because they coined a term that only applied to one specific product.
uBlock Origin and similar ad blockers stop YouTube ads. Occasionally YouTube changes something and ads sneak through until someone updates the filters.
Now that Chrome has essentially neutered its ad blockers, the only option for many people is Firefox on desktop and mobile, which still has a working version of uBO.