Which would have been 1/10th as awesome. You have to be a pretty miserable curmudgeon not to have just sat back and enjoyed the hell out of that. I was giddy.
My reaction was probably a bit different from some described here. I was stunned because it didn’t even occur to me it could be Luke. Like that seemed so farfetched to me. So the X-Wing rolls in and I’m thinking “hm, wonder if this person is here to help.” And even then the guy comes walking through with the cloak and I’m thinking “huh, maybe a Jedi.” And then a lightsaber comes out and he’s totally kicktail and I’m thinking “wait. Wait a minute...”. And then the black glove on one hand and it’s suddenly dawning on me, like “oh crap. Wait. Could it seriously be???” So when he dropped the hood and it was Luke, like actual Luke, from that time frame, I was practically jumping off my couch.” But for me it was a slow buildup over the span of a couple minutes. And it was so freaking awesome.
Also thought it was cool to see him just wreck like that. Poor Mando almost got killed by one of those things. Barely got out alive. Luke cuts through a whole platoon of them like a warm knife through butter. It was interesting to see just how powerful and dominant and special Luke was, because I don’t think we ever saw that in the original movies. It’s helpful context and explanation for why this guy was such a legend.
Just really awesome and well done.