This post is rather old now but I �ll add this anyway.
This week, rather coincidentally, I came across two bits of info relevant to this argument. They come from reputable and well known text books used by beginning TESOL teachers worldwide.
1. Grammar for English Teachers by Parrot (Cambridge University Press) page 73 - use of implied comparatives
2. The Practice of English Language Teaching by Harmer (Longman) page 242 - "... for anyone interested in how native speakers really communicate, such close attention to the construction of informal encounters of this kind gives invaluable insights into the way language works"
When I think about it the well known linguists don �t criticise the way native speakers use the language. Instead they examine and learn from how the language continually evolves to meet the communicative needs of those using it.