I find it awfully sad and depressing how people on the internet pile onto a company that tells an opposing view without reading or discussing further into their choices.
Instead it is easier to to critique the low hanging fruit point rather than discussing their actual reason for not using this 'kubernetes' software.
So is their blog the main product? If not, then the 'their blog gone down lol' quips are irrelevant.
I found their post rather interesting and didn't suffer any issues the rest of the 'commenters' are facing.