Well, shoot. I did link those instructions from the 2006 A2000 forum, as you probably noticed. I was always told there was no difference between the A2000's and the A2020's, except for the color. My bad.
At least you found the numbers you were looking for. 2875 hours is quite low, as I suspected. What never made sense to me was why A2020 owners only got until December 31, 2010...that's only 4 months longer than A2000 owners who've had an extra year to put hours on their defective optical blocks. There's no doubt that more A2020 owners will get stuck with problems after the extended warranty period. Many simply weren't given enough time to age the panels (in particular, the blue filter) with UV light.