That paste application is actually very good and even compared to some of the screenshots of the IVB cpus. The paste being hard is not an issue since it is supposed to bond somewhat to the heatspreader and dye. After you apply so many heat cycles the TIM cures which is what you are actually seeing. As long as the heatspreader doesn't shift, the thermal paste won't move from its spot. If you were to remove it and you saw it cracking and flaking off, then I would be concerned.
I find it interesting that this was never brought up earlier. Probably because Llano doesn't have heat issues with a decent cooler.