I think on of wikileaks misstakes was to apply for asylum in 21 countries. Make it easier for the countries to say no. It is like hichhicking. Chanses of you getting picked up at a road where the drivers of the cars know that there is only one car in one hour is higher then getting picked up at a high trafic road. Same psychology.
You may be correct if getting asylum was the only purpose of the spray and pray request. To me, it seems to have filled another purpose also, to show the people of the requested countries where their governments stand. For example, the French government's come under quite heavy fire for their handling of the situation.