In part, "Pro" is in how you define it. There will always be computer users who need a cutting-edge configuration with the most powerful CPU, GPU, largest storage, I/O ports galore, etc. However, as mainstream hardware becomes more capable over the course of time, tasks that once required bleeding-edge hardware may no longer require it.
I started doing desktop audio on a Mac back in the 1990s. Great software (Sonic Solutions) that cost thousands of dollars, that required bleeding edge hardware (the DVD burner alone cost $3,000). Now, anyone with GarageBand on a garden variety Mac can run circles around that, and LogicPro doesn't exactly require a nMP, either. Does it mean that music-making became "less professional?" No, it simply meant that professionals and serious amateurs don't necessarily have to go broke to have the tools they need.
So, maybe Apple is less interested in serving "media professionals," but maybe it's because everybody is now producing media, and nearly every product Apple makes is capable of producing "broadcast quality" productions, from iPod Touch on up. Professionals may lament the fact that they're no longer gatekeepers to arcane tools and technology, but if they're using a Mac to set type, record and mix music, edit video or still images... it's because those "expensive, professional" computers replaced equipment that cost orders of magnitude more than a computer. There's a fair possibility that, as young, early adopters, they put a fair number of older, higher-paid, less-nimble artisans out of work. And so it goes.