Someone will fork this and call it ZdashClassic, with 0% premine. LOL
Nothing wrong with a pre-mine as long as it is being used for development.
This pre-mine is nothing compared to ZCash's 20% for 4 years, nor is it much compared to Zclassic who aren't getting anything done without a bounties/development pre-mine.
Premine wouldn't be a problem when there wouldn't be a track of devs past performance of riding the wave of cloning with premine than forking combined with sweet talk and at the end abandoning his project/s.