To make such sales figures meaningful, Apple would have had to make neither option the default on their website, and not make it the default option you see in stores (or don't get stores to stock mostly glossy versions). Otherwise, the results from asking such a question are useless anyway, and that's exactly what has happened here. 
Besides, most people who say that compared to their previous matte screen laptop aren't coming from laptops which had a really bright LED-backlit screen, or improved/newer LCD panel technology. They're coming from a CCFL-backlit screen that suffered from a lot of dimming, and then they see the new glossy screen (which is more colour saturated) and are impressed. Well you'd certainly hope so.
Anyway, it's not a fair comparison either.
Looking at the new 17" MBP matte and glossy models side by side, you don't see much of a difference except for a slightly more colour saturation on the glossy screen. I'm talking about a VERY small difference. There are a couple of people at MR who own both models who have said the same thing.
So basically, a lot of these comparisons aren't fair if they're just comparing their old laptop to the new ones, or when someone starts talking about sales figures. Who cares when neither comparison is fair?
Besides, most people who say that compared to their previous matte screen laptop aren't coming from laptops which had a really bright LED-backlit screen, or improved/newer LCD panel technology. They're coming from a CCFL-backlit screen that suffered from a lot of dimming, and then they see the new glossy screen (which is more colour saturated) and are impressed. Well you'd certainly hope so.
Looking at the new 17" MBP matte and glossy models side by side, you don't see much of a difference except for a slightly more colour saturation on the glossy screen. I'm talking about a VERY small difference. There are a couple of people at MR who own both models who have said the same thing.
So basically, a lot of these comparisons aren't fair if they're just comparing their old laptop to the new ones, or when someone starts talking about sales figures. Who cares when neither comparison is fair?