Did this instant learning experience include skills to consistently get lucid? Probably not.

I think so. I did it several times afterwards. It was a spontaneous thing which I did mid-dream though - I didn't go to bed with the intention of doing it. I don't do it consistently because it really isn't nearly as interesting as it sounds after the first several times, and you miss out on the usual contents of your dream.

It's been a while, perhaps I'll try again the next time I find myself in a dream, just to see if I can still do it.

I usually have very little agency in my dreams

I don't think that should natter, I have 3rd person dreams frequently too. I think the actual contents of the dream is irrelevant...as long as you're in a state that you can have coherent thoughts, such as "oh, I'm dreaming now".

From what I can tell, it's entirely down to 1) noticing that you are dreaming and 2) resisting the impulse to wake up upon this realization. At this point, you'll probably perceive having semi-control over what you're hallucinating about, but if not at least you'll have the interesting experience of knowing you are dreaming while dreaming.

(and I think katydee is saying that "notice dreaming" generalizes to "notice confusion, and don't just play along when things are weird in real life")