We often talk about business consequences of a company "stealing" your ideas/features and their defensibility, but for the teams involved in innovation at such high competitive level, it must be soul crushing to live through it.
What Android did is kill off all proprietary OSs so it that was "soul crushing" it must have been at Samsung's software team, Microsoft, etc.
Competition is a different thing with tech. There's more worry that the market doesn't exist than there is that someone is going to take market share.
"How did it feel inside Xerox PARC when Apple pivoted to GUI lite?"
Or,
"How did it feel inside Go Corporation when Apple and Microsoft pivoted to tablet lite?"