No, it's not - this is an absurd statement. Cloud services get most of their income from big and medium companies, billing tens and thousands of dollars in privately negotiated agreements. Digital Ocean and AWS don't live on single developers paying them $5. All their real money is on B2B.
Multiplayer games either get a flat subscription from all their playerbase, or rely on micropayments. Either way, they spend much less on account management where they interact with customers as individuals, and much more on analytics, where they measure and work with their customers in aggregate. These are completely different business models, that completely shape companies that operate on them.
> Find the pain points your business customers/partners are having and then charge for solutions.
Games are not solving any problems - they are entiertainment product. I've seen people who have tried to reason about games in the terms you're using, and it always yelded hillarious (but also sad) results.
One of the ways these companies can reduce risk is actually by using other proven open source components. If they won't even make an effort to try to expand this, then there will never be a well-understood way.