Nonsense. Opinels and Vics don't challenge it as EDCs? Or are you just indulging in hyperbole?
I really find Laguiole totally overrated, really. I find their knives ugly, mostly unuseful, and sometimes horribly poor on a qualitative point of view. The guys who rule the brand would sell their own daughters in order to make more money. Laguiole is a mess to me.
And I see Vic as some kind of world in itself, totally disconnected to the "real" knives market. Just like Disney parks, you know: they're probably great, but I get bored the moment I get in.
I respect people who respect Laguiole and Vic: no fandom is stupid (as long as it's not the Mantis Militia). Laguiole and Vic are just huge worldwide brands with millions of different products, and Perceval has nothing to do with their ways.