It's not about Apple's implementation of Siri. It's about their method of responding to complaints. The "you're holding it wrong" attitude is completely pervasive throughout the company. The point - and relevance to FCP X - is that once they start to dominate an industry, they seem to quit integrating customers' needs into the equation.
This approach may be fine and dandy for a company focused on consumer electronics and retail. I cannot help but marvel every time I go to the mall and see the Apple Store packed to capacity with people lining up to hand over their money.
I admit that talking with Siri brings a smile to my face. I also find FCPX fun to use and see its potential for certain types of editing.
But when it comes to tools for my own livelihood, playing the Apple guessing game is a luxury I can no longer afford.