It's a bit of a vicious cycle, but In general most websites are so chock filled with crap that not having to click into them for real is a relief!
I have no idea how these companies, which make quite a decent amount of money at least up until 2020, can have such utterly poor sites.
I once counted some 20+ redirects on a single request during this process heh..
If there was a way to split Google flights into a separate company and somehow ensure it wouldn't devolve into absolute trash like its competitors, that would be a good thing.
Shopping for flights is a surprisingly technically difficult thing to do well.
There are events associated with flight status that Google doesn't know. Like change fee waivers, cash comp awards to take a later or earlier flight, seat upgrades, etc.
Lest we forget the money in that scenario is from butts in seats not clicks on a website. The particular example is ill chosen as google is actually taking on a cost, taking nothing, and gifting the airline a better ui.