Should Active Duty Soldiers attend a WLC led by the National Guard?

In all honesty, as long as the NG instructors are teaching to standard, then it should not matter. A leader is a leader, regardless of NG, RC, AC components.

I wouldn't see an issue. Perhaps the NG instructors are full-time NG members, not just the "weekend warrior" stereotype? It's one Army, right? I know the NG & ANG here train active, reserve, & NG soldiers/airmen.

If you're concerned, ask one of the other members who went to the school in question & get their opinion on it. I suspect they are teaching the same curriculum.

A lot of the Soldiers in training battalions have been trainers for years. Like, 10+ years. While this can be a liability (they may have been out of the fight, if they were ever in it), it can also be a huge benefit. They weren't DA selected to be a trainer or instructor; they chose the job. They have been doing it for so long that it's second nature. They love what they do because, in the Guard and USAR there is a lot of flexibility with regard to where you go and what you do.

So, I get the hesitation, but I would wager that the training is just as good with instructors and trainers who are just as good if not better and more passionate.

Lastly, if TRADOC certifies it, then it's just as good as the RA course in their eyes.