How have you lost? I write my HTML in a very similar way to the linked article, and I don't think I lose at all. In fact, I much prefer it.

It is more consistent. All of my code is now (in my case) Scheme. This makes it easier to change things as you don't have to go between two different languages. And it is simpler.

My favorite reason is the fact that I can use S-Exps. I no longer have to type the ending tag. I remove the possibility for spelling it wrong, or forgetting the slash. And it takes less space and is easier to get the placement correct, as you just utilize paren matching.