Other than the voice, what is wrong? Anything? If they were to use the right voice, would you still be complaining? Microsoft is using things that Siri can apparently not do to make their product look better.
Your "other than the voice" question is irrelevant. Moving the goal post doesn't address my point. It's just troll 101.
The ad presents an outdated, pre-natural language Siri and then compares it to its newest version of Cortana. It's misleading advertising. Which potentially opens them up to litigation.
However looking into this deeper, I believe MS may be able to get away with this stunt because both devices are reciting a script and not technically operating to spec.
So this could be a dramatic license loophole. Microsoft has a massive legal army, so I'm sure they've thoroughly vetted the tactic and protected themselves accordingly.
Still, it's a pretty sleazy ad in my opinion.