Emergency powers are not open ended. All of the governors could and should have consulted with their legislatures to proceed with whatever measures they would enforce and what the enforcement would be.
I definitely see a place for these emergency orders, like we see with the president having power to Take military action for certain period of time before Getting congressional approval to continue in times where seconds or minutes count. Same as it should be applied to the state governors, in the early days of the pandemic they need to make quick decisions, but those should be limited to say 14 days before they must get legislative approval of their plans. That should also require additional legislative approval of any changes or to extend The orders every 14 days as well. That way they all need to justify their actions.