That's fair, but to play devil's advocate, the data they gathered from Stadia theoretically helps improve their already dominate moat (Search and Ads)
But if that was true they would have kept the service alive like they have done Android. Google doesn’t give a shyt about Cell Phones, Android is a data mining application and that’s why they are keeping it around. Stadia could have potentially been the same but it failed, they didn’t understand the market and that ignorance bit them in the ass,.