Interesting that no one mentions that Google also runs the backend flight/hotel search used by most trip planning sites. They bought it (ITA) over a decade ago.

So all these providers already lost this power years ago and are just providing a fancy UX over Google's backend travel search service. Now Google is merging the two search engines and cutting out the middleman.

The hotel /travel industry is probably the worst complainant as those industry's do a lot of sketchy stuff.

As does the insurance industry ever wonder why the UK insurance industry went all in on cuddly mascots - one factor was googles clamp down on black hat techniques simples