I doubt they were scared once they realized Phil Harrison was running it.
Most gaming era members could of organised a better stadia launch.
If I was in charge, a few years prior to stadias launch the first thing I would of done is acquired these devs
The Chinese Room
Playdead
Bluehole
Housemarque
IO Interactive
People Can Fly
Iron galaxy
Ready at Dawn
I would have them working on exclusive content straight away and secure Exclusives deals, as well.
In the reveal conference I would show a small demos of io interactive new stealth game based in Japan, built from the ground up stadia hardware, it would have the most detailed Japanese towns ever scene, even putting cyberpunk npc count and detail to shame.
People can fly will show a teaser of there game which would be a first person action adventure game, set on Mars, you are a worker on a Mars base, due to your work you have an iron man like suit (not as advanced but still very tough), you survive a disaster caused by some unknown entity, you must survive and find out what happened, the game will feature many advanced UE4 svoggi lighting and UE4 new destruction tech.
I would also show a gameplay trailer for playdeads new game.
Instead of launching in Nov 2019, I would of launched as a beta in August 2019 with a full launch in spring/summer 2020.