[unlaxedneurotic]

I think it might be due to the compunding factor of multiple people working on multiple files concurrently. Collaboration in research is more limited to sharing information, and when writing does take place at the same time it is only usually a couple people working on it. The frequency of sharing files could also be a factor. Also I don't think anyone wants to learn to use another piece of software among the dozen they already have to use. Emailing a latex file at the end of the day seems much simpler.