2005 just seems like a joke, general pronouncements never work unless they are microstructurally sound. I think the Haiti national LJ record, which was once the WR, was set in the 1930s (7.91/92 ??.). Many nations still don't have a reliable domestic out of competition testing, and many nations have corrupt testers.
Personally I love watching Bekele run but I am sceptical of his times. Claiming that 12:37 isn't clean (and of course it isn't) but running 12:40 a year later sort of confirms it was not a one off.
I have wanted the records scrapped for some time but I was hoping they would use 2010 as a base year.