Did stadia loose capcom?
can only speculate at this point but Capcom is a big company, not like some small ones who do not really have business sense and pass on potential huge customer base because something is new...
Maybe the folks charged of setting this slide forgot Capcom
Capcom and EA both announced their intention to support Stadia and that they would announce their plans at a later date. I've not seen any news reports to the contrary.