I don't think anyone thinks or ever implied that Larian invented the concept or were the first to imagine it. With respect, the original statement was just that critical failures on ability checks are a Larian homebrew... and the comment is correct, they are. The comment was just that this implementation in the game is a deviation from the ruleset it's based on that Larian brewed in. Which it is, and they did (the implication that I'd read in that comment was that if the player doesn't like that particular implementation, to thank Larian for doing it that way, not 5e D&D, which does not).
