That’s not what a thin client, that’s just a mini PC. A thin client is a computer that connects to remote sessions, and since that’s their main function, they’re they don’t need more computing power than you need to connect to a report desktop environment.
I’m guessing this “quote” is from this article.
If that’s the case, here is the actual paragraph:
And further down in the article
English is not my first language, but this does not sound like cavity search