Of course I read this blog.
Look carefully at the phrase at the end:
As the model on which Fyookball is basing their calculations is already far-fetched, I will not bother addressing the math.
In fact, the author of this comment just couldn't understand the article.
The article considers a different model ( in the form of a tree), because this model should give the best results. It does not state that LN will have a model in the form of a tree. And if even for the most optimal model we get bad results, then for all other models, the results will be even worse. This is a standard technique in mathematics.
I don't recall Bram Cohen's comment. Could you give a link to this comment. If in addition to the word "stupid" there are real arguments.
It's there in the responses of the blog. I remember Bram Cohen had something to say about it on Twitter as well. I will try to find it.