Agreed!
Please don't tie in worker requirement for the museum. Resources and time should be alright.
Alternatively, tie the progress at the museum to the game-play events, such as number of stars earned in multi-player battles, resources accumulated over time, stars earned in world wars by the player, or, other such game-play based milestones.
I fear that the progress at the museum might get tied to dock expeditions with additional destinations for the museum artifacts (the State of the Nations post says "
Museum, which will allow players to gather, improve, and display various artifacts from throughout history"). I hope I'm wrong, because, that will still tie worker requirements indirectly through expedition requirements.
Anyways, fingers crossed, and hoping to hear more about the museum in the coming weeks.
Cheers and happy gaming!