Tomasello - Chapter 7

Although I can't make it to class today because I'm spending my morning BSing my way through a presentation, I still had a question I wanted to ask the class. Tomasello goes through a few different theories at the beginning, explaining why his theory is all encompassing and why others have flaws. One he particularly mentions is the modules model. He explains that it cannot be true due to the time frame required and the phylogenic time necessary. Although he does make some important points on this, I'm still not convinced. The modules theory is often used to describe why humans do not need to learn all the individual pieces of language. The theory also stands up against something Tomasello didn't mention as an important aspect of the theory; that it helps explain that of 162 recognized languages in the world, 161 of them follow one of two basic formats. It's clear that humans went through a bottle neck a few ten thousand years ago, so our evolution has suffered some lack of diversity not that long ago.
My question is then this: Isn't it possible for both of these ideas to have some truth? If not just the modules theory, but some of the other theories he mentions? If human evolution is so complex and we're still struggling to figure out exactly where we gained our most basic human abilities, couldn't more than one thing have come after a first initial spartk? (ie. first we gained the ability to recognize other humans as having intentions like ourselves, and through that others also slowly developed?)