While I don't edit video, I still consider myself a "pro" user. I'm a developer like many here, and, like many here, enjoy doing my work on a rMBP. I bought it with the understanding that I wasn't going to be upgrading the hardware inside it. I got the specs I knew I would need. If I need to upgrade, Macs retain their value better than most (if not all) of the other manufacturers, so selling this one and replacing it shouldn't be a problem.
Sure, I sit in the coffee shop with it sometimes, but I don't drink lattes (americano usually), and I don't just browse the web. My rMBP is more than a toy, and I get real work done on it every day.
I'd wager there are a lot more like me than the "pro" user described in this article. Now you tell me: who should Apple cater to more?