ok in no way am I an expert on computer cpu architecture but that article is from 2016. 8 years ago. maybe things have changed since then.
They haven't. Intel's Management Engine is still being included in every chip they produce.
As well, I'm not sure intel deserves to have their balls busted big time of something that old that long ago.
6 years is "long ago"? Hardly. And how long is enough to forgive a company for sneaking a government funded backdoor in to billions of devices?
Intel has provided documentation about how their RDRAND and RDSEED work. Believe it or not. Trust it or not. But they provided the docs.
And you expect a company which might be putting a backdoor in to their products to release documentation which says they have put a backdoor in to their products?
Further reading:
https://archive.nytimes.com/www.nytimes.com/interactive/2013/09/05/us/documents-reveal-nsa-campaign-against-encryption.html