Should SM be counseled for incorrect PT uniform? SM does not have jacket and pants for Monday due to circumstances.

If it's a first offense just give the SM a verbal. Counsel him if it continues happening.
Why was the NG facility closed on Monday? Don't they have a full time AGR staff?

sometimes stuff just happens. No need to flog him for it.

nothing that a few burpees could not correct, guaranteed

Definitely. The SM should be counseled. There's no reason for his spouse not to have her own set of uniforms, and as a Soldier he should know that he needs to be prepared to fulfill his duties. Right place, Right time, Right uniform is the easiest thing in the Military.

I'm curious why they don't each have their own PT uniforms.

And the answer issssss>>>>>drum roll please...YES!

If this was a one time...never going to happen again....then I would treat it as a one and done, raise an eyebrow, giggle a little, and move on with the mission.

I think this is definitely a "non-formal" correction worthy incident. I recall that my Division Chief used to hold a uniform inspection one week prior to any scheduled event where there was even the slightest question if any of our Sailors didn't have a full sea-bag ready. Uniforms are expensive...young service members sometimes make strange choices. Perhaps a good (and fair) penalty would be to assign that member a duty or watch that am that requires another, higher uniform.