it’s possible Google completely forgot this product is still out there and is maintained as a pet project by some people who no longer have time for it.

I’d use Google flights except for two glaring issues - the price, particularly calendar view, defaults to useless OTA that no one in their right mind would actually book from and who often can’t issue a ticket at that fare anyway. I wish there was a way to disable or select booking sources, and second, displays do not include booking class or fare basis.

They’d be better off including an expert mode in Google flights with ITA’s features and making sure it works correctly.