Why does Siri no longer display Wolfgramalpha data? Specifically when asking Siri about flights overhead.

https://www.engadget.com/amp/2011-10-28-10-cool-things-you-can-do-with-wolfram-alpha-and-siri.html

I know this because I used to use Siri and Wolfram Alpha. Siri used to pull integrated data sourced from Wolfram Alpha and it no longer does. ADS-B a kind of technology that tracks Aircraft through satellite navigation. Displayed by Siri through Wolfram Alpha a chart of aircraft’s would be displayed and it no longer displays this data. I’m guessing you were not aware of this capability.