Coordination between the state SOS and FINRA often isn't very good. But they're okay with Nevada because they've already done the r/s there. They're just waiting for FINRA to make it official.
They have to do the reverse split in Nevada before applying to FINRA; they need to be able to submit the change to the corporate charter along with their corporate action request.
Of course, they could wait to lower the a/s if they wanted. But since it isn't supposed to take more than 10 days to get FINRA clearance, maybe they feel it's more efficient to do all the Nevada changes at once.
It's not a problem with most penny companies, because they leave the a/s unchanged when they reverse split.