How many Hollywood media makers are there? As an Apple shareholder should I be excited to learn that they made a specialty computer for this demographic?
2015 was a banner year, nearly 35,000 sold in the USA. Only about 19,000 last year. Estimates from a number of years ago were of about $10,000 profit on each sale
There are a lot of Youtube stars who would jump at a Mac Pro if it meant they can turn around videos quicker. Time is definitely money in their industry as well.
Point is that "professional" is a lot broader than just a few big enterprises.
supporting the highest of the high end is beneficial for the platform overall. almost no one who needs this machine will sweat spending $15,000 on a configuration.