Sundering stuff established in the Q&A

[Lauront]

Honestly, I would say that the Japanese is quite the opposite. A more literal translation of his Japanese line would be "Still, the fact that humanity has gotten this far... It's true that this result could not have been achieved by our methods." The context for this line is all the pain and suffering he had to endure, so Venat will get no thanks for the part she made him play in it. And in the Japanese it's not pointed at the WoL specifically, but that "humanity" has gotten this far.

If the French translation is more specific here, I think they made an inference that wasn't present in either the Japanese or English versions, and may have slightly constrained the meaning of the line.

(Reference if you want to hear the Japanese line: https://youtu.be/c4My9iGEqGA?t=1459)

Accepting that as the case for the time being (as I'm not familiar with Japanese in the slightest), both the French and German versions are in agreement that what she is being praised for is her matchmaking ability, i.e. bringing them all there (and by this I would assume it doesn't just mean physically getting there but also navigating the vagaries of time travel, setting Emet aside in the Aetherial Sea, marking Meteion etc etc., i.e. the cumulative set of actions to bring them all together.) As was mentioned, they coordinate to discuss and agree these translations in tandem, so we have one set specific to her matchmaking ability and the other with a somewhat less precise claim but which can be read in the same vein. As far as I am concerned, this undermines any sweeping reading of the claim as amounting to an assertion from Emet that the ancients would've never been able to achieve all this even had circumstances been different (i.e. she spilled the beans.)

I find it interesting how the game refers to both Venat ("Wind-up Herois") and Emet (in the Minstrel's Ballad flavor text, before we really even saw him do anything that could be considered heroic) as "heroes." It kind of makes you wonder what their working definition of that term is.

They are taking the term to mean self-abnegation in service of a greater ideal, I believe. By that definition, Emet-Selch, Elidibus and Venat would all qualify - in fact, they sort of set this up for Elidibus with this (even more evident in the French version.) WoL in this case can be taken as synonymous for hero. Though with Hades, they do throw in "fallen" to qualify it.