And Siri can't answer the question when you say bow tie either. It is false advertising.
So is your point that bringing up a web search is "false advertising", or does Siri not bring that up for you?
When I say "How do I tie a bowtie again" Siri offers to do a web search for those words and the second link has the instructions. I posted about it earlier.
If you truly feel you've been misled in your purchase due to Apple's advertising, then I recommend lodging your complaint with the FTC.