This clearly shows the difference between relying on AI for any reasonable answer, and relying on (some) human brains.
Most folks glancing at that list would conclude that it was unreliable. AI is programmed to retreive the list from the data store.
Unless and until AI as used by SIRI is good enough, it is not good enough. At this point, qualifiers with nebulous definitions like "best" and "ever" are WAY too much for the feeble AI we have available now.
Our current AI is very useful for lots of stuff. But queries like "best" are too fuzzy as of now.
And humans cope better with 'best' and 'ever'? Yeah, go try and get an internet consensus for the 'best' of any type of product category, especially smartphones. Humans don't fare any better, because it's a subjective announcement concluded from thousands of variables, many of those variables being inherent biases, outlooks, and personal preferences completely unrelated to any kind of empiric data. The best you can do with gather a large subset of opinions to try and determine an answer, but even then there will be many who will pronounce whatever comes up on top as the worst thing ever made. I have a friend who is an Acer fanboy (yes, they somehow exist) and will proclaim anthing made by Acer is the best thing ever, using insane justifications. I don't even bother debating anything with him, I just nod and smile when it comes to this. So, I would trust whatever answer Siri gives more than his opinion. When this came out, he truly believed, will every fiber of his being, and it was the most innovative product ever and would be the downfall of Apple:
To me, it's a frankenstein product that combines the worst aspects of two worlds, while throwing out all advantages.