It would have a base country where its HQ are yes.
But it would still have employees from multiple EU countries, and operate within EU's laws, guidelines and cultural frameworks -- giving it a much wider perspective than 10.000 Americans (+ some wannabe Americans that came there to study/work) in a building in San Francisco.
10 years ago I would have disagreed with that statement. Now I can't. SV has gone nearly ideologically monolithic. It may be literally the greatest danger facing SV right now, not that anyone in SV sees it that way of course. I don't live in SV, and I am starting to see people in my real life (not just on the internet, where all kinds of crazy things get said that don't really mean anything) start naming it as a problem. I haven't had to reassure anyone that I work for 'an SV company, but not that kind of SV company' yet but it's probably less than a year away at this rate.
So, are you referring to ideology of neoliberal economics mixed with social justice in the form of minority rights, or right-libertarianism, or something else?
I would say that, exactly as you phrased it, that's multiple cultures. "The EU" can't run a "Facebook", it would be "The French" or "The Polish" or something like that. The EU is definitely in a place where increasing the amount that one of the dominant cultures imposes on the rest decreases the ability of the EU to function. (I'm talking first derivative here, which as you may recall eliminates the original value; I'll leave it to the reader to decide how far the EU is or is not already down that road.)