I don't want to be that guy, but C9 is not a team of youngsters they're all 20+ years old heading to mid 20's, youngsters to me are like 20 and below. Anyways. Vini bottom fragged both of those games but it's not a big deal but you're underestimating what these teams are.
That one player difference on G2, it's just one guy, it doesn't mess up their whole system, what it did do was give them confidence and make them immediately go ape shit, right after beating furia 2-0, they barely lost to astralis 1-2, they beat MIBR 2-1, and BEAT astralis 2-0 right after that. That is not a form of a new G2 that needs help, that's the form of a squad of experienced veterans going at it.
Also losing to MIBR? Did you even see MIBR's form? They almost beat ASTRALIS 2-0 on their FIRST MATCH AS A TEAM. We're not talking one player, we're talking an entirely different core. Then they proceed to beat Furia 2-1, and then almost 2-0 G2 as well in their new form with Niko, who like i said earlier, G2 was popping off.
So you can't tell me that those 2 losses are just unfounded and are enough reason to be considered as "dismantled" and have player changes, none at all. Those 2 teams they lost to were insane in that tournament and you can't prove that wrong. Also, furia got double digit rounds against G2 on both maps, that wasn't a "dismantling"