yes i think it's made for 1.1% of the players.
Why should a player with a lot of buildings to upgrade waste workers on university instead of upgrading those buildings?
Ex: i just passed to GA and i've got at least 1-2 months of important things to do (airstrip,mercenaries,alliance gate, war tattics, mills and markets,oil refinery factory, towers, new buildings and traps+the armory and the troops). to do this i need all workers working 24/7.
No time for university until i finish all this, and then the choice is between upgrading defenses quickly or waste 6 workers for uni..