As an insider, from my chair, I can tell you Oracle is usually not into boasting it's survival / existence based on one high profile client.
We sometime see customers lists in internal memos but these generally dont end up as high-profile web site / PR announcements. Rather, key points get floated about during quarter numbers filing. I'm suspecting many of our higher-profile clients dont need (/want) their infrastructure details out in the open, or that any divulgation remains vague.
In my division, we see governments, pharma, entertainment and aerospace big names as well as smaller clients and collabs with 3rd party. It's the defence clients you usually never hear about.
So, I'd say, Oracle doesn't _need_ to make anything free to any one big client just to please them. It's also not a PR benefit. We already have plenty free or otherwise open offerings (our cloud products are both hosted or On Premise, support federated SSO, have plug-in or SDKs to be extended).
The "Oracle is evil" arguments is kinda funny when, from the inside, you see nothing inherently evil about what we do. How it's perceived by some customers, though, I can understand and it probably the result of bureaucracy, business processes or internal competition that leads to certain views about the company. I suppose this explains why I hate MicroSoft with a passion, yet, rare hear MS employees ever go out in masses, irate about a company they "should" hate, from our point of view.