Conclusion: that's a diagram of the obvious approach to building a thermonuclear device, which happens to be completely wrong for classified reasons, and if you pursue this design you're going to waste a decade before you figure out why.
More likely is that the obvious approach is also totally the right approach and anyone with the relevant education could easily come up with it themselves, but the US government still censors it out of security theatre.
The blog goes into detail about how releasing any wrong information or misinformation about a secret, still defines the bounds and brackets the real information, and allows eliminating possible options (as no agency would reveal the truth.)
If that was the case, an actor could go "this is obviously not the way to build this, lets move on" so in a way, you have sped up the development.
Just like saying, "We have 100,000 nukes" (a lie), everyone knows its a lie, which means we DO NOT have 100,000 nukes, as we wouldn't reveal the truth.
Enough of these little "misinformations" get released, the closer to the truth someone can get.
Or, there are 5 people doing this type of research across the world, 3 of them barely taking calls on iOS and the rest just finally managed to migrate from IRIX to Cygwin last year, and they are to take all necessary actions for operational security and talent acquisition.
I don't work in or around this field and never have. You have as much knowledge about it as I do. That was just my interpretation of the situation, based on watching too many movies.
