alt Hacker NewsI wouldn't describe it as 'rushed'. Its integrated pretty much exactly the way they said it would be, as a fall-back from Siri when you ask world knowledge questions.
The part that doesn't work is having Siri locally smart enough to use it as a tool.
I used "rushed" because they decided to add it while everyone was still figuring out what it was for. That behaviour goes against the OP's claim that Apple "waits to understand what the thing is capable of doing" before acting.
It feels like we're rewriting history. There was a lot of blowback at the time.