True, in the recent two games he did not "freeze". But we all know he has a tendency to do that. Just in case it is so (that I tried to analyze in a much earlier post) two games are too few to state he's getting better in that regard, probably he never will, or just in years (young enough for that). So you are right and he saved the team from a greater blunder in Paris, as well as in the Camp.
The "dirty" save, as a term, is very common among GKs, that's all I can tell. If I'm not mistaken I knew and heard that word in 3-5 other tongues too, but forgot. I could dig it out, but that's not too important I guess. As far as I know keepers have been calling it "dirty" at least during my carrier and long after that it was common, because those are the primary types of saves when they risk their body. Easily possible that nowadays (and in different languages) there are different terms. When I did coaching in English territories (spent long years in India and elsewhere) that was the word being always used.
Sometimes I was talking about MATS, sometimes I generically circled around the subject. What's wrong with that? But if you need a definite answer from me, we need to be on a verbally common ground, so hence the redundant and uninteresting blah-blah from my side. What I consider to be a save with a good bunch of luck, you don't and vice versa. I could talk about "reflective" saves and conscious saves, which are not reflective, or conscious saves that are reflective in nature, but does it lead anywhere in this forum? You repeatedly say I didn't answer your original question, whereas I always feel I did.
But if you need another "statement" from me: yes, he did a great performance in those two games, not without being lucky in a few cases. He wasn't always just lucky, but he often was - in my vocabulary at least. If I said he was "just" lucky than I was wrong. But he was "also" lucky in some cases.
But may I return a related question to you? Generally speaking, are the greatest goalkeepers often also the luckiest or in your terms the end-result is what counts, regardless the quantity of luck being involved?