It would be completely illogical and unfair to award acorns for each entry involved in the mass proposal. This morning's mass proposal for the Armeria genus, for example, was applied to 156 plants. It would be ludicrous to award 156 acorns for the same amount of work it takes to submit one proposal earning one acorn.
Acorns are nice, but your time has to be worth something too. The mass proposals save time. Most people don't have the time to fill out the information boxes in 156 entries in one day, but they can do one mass proposal and have all of that information in all of the entries right away.
