That is an argument against requiring the citizens to be armed. That is different from not permitting them to be armed.
a Militia member had SIX MONTHS to acquire a smooth-bore musket
That was not a requirement of all militias.
Geez Louise. Here you just got finished trying to convince me that arming everyone is important because their ranks will be drawn upon as needs increase.
Now you're saying, "Well, actual arming is optional". WHAT?!? How is merely "permitting" them to be armed preparing them for Militia duty .... if they choose not to arm?
"That was not a requirement of all militias."
That was in the Militia Act of 1792. I don't care if it was or was not a requirement of all militias. What's important to note is that it is assuming people don't already have the necessary arms laying around the house.