When it comes to cost per implemeting SPEC, agents are far cheaper than human salary. So, it's not going to go well.

That said thankfully there's no way of measuring a good SPEC yet. If there is that will collapse the SWEs profession.

Quite a few people do believe that a good specification is long, has multiple levels of headings, interspersed bold text, bullet points, and so on. Definitely, this is what they have seen happen throughout their lives: competent people have heaped praise on documentation which has had these signs, so this must be what good documentation looks like.