The tooling that it was designed for was things like
https://youtu.be/agzItTz35QQ?t=709Those were the intents that were set up.
Yes, it would be nice to have LLM style power - but that isn't how Siri was architected even from the very start. Word combinations are recognized as certain intents and parsed for functions to call into apps that register that they are able to handle that function call.
If there was no match for the intent, it was sent to Wolfram Alpha to do a knowledge base lookup. While Wolfram is really good, it certainly isn't a chat bot.
Siri wasn't supposed to be smart. Siri was intended for an interface to the existing apps of phone, music, messages, calendar, reminders, map routes, email, and weather.
When you look at that segment, 12:48 "just take your phone and ask Siri to set a timer for 30 minutes and you're done." Siri was very much intended as a timer setting app.
What functionality in there that you see in this segment that isn't designed as an interface to existing apps? What time cue do you see them promising something smarter than what was designed?