180 2.8: do you agree with this?

Hi, 
I saw this page comparing 180 AFD F2.8 with 70-200 F2.8 VR...
http://dipastro.pd.astro.it/~cosmo/bepi/Photography/Photo%20Tests/180%20vs%2070-200%20SHARPNESS%20TEST/index.htm
If you look at the crops shown, the prime is pathetically soft at 2.8, even in the center...
My question is, does it match your experience in the field?
The crops show that 180 is sharper than 70-200 at F8...if you look at the photozone review of the prime, it shows that there's not much difference between 2.8 and 5.5....F5.6 being the sharpest aperture...and F8 in fact goes down a bit. 
regards,
anurag