Google News added AMP support on iOS.
AMP pages are displayed in iframes similarly to Google SRP.
The same preprocessing must be applied to navigate to the iframe.

The URL format for news.google.com caroussel is
https://news.google.com/news/amp/...

But if you load directly this address (without going through Google News landing page) there is a redirection to https://www.google.com/amp/...
This means that our current detection (and distillation) handles the iframe navigation and distillation correctly.

I file the bug to do further investigation and confirm that the current behavior will stay the same and that we don't need to update our code.