"TL;DR" my ass. You didn't even read what you posted.
They said, IN THE LITERAL NEXT PARAGRAPH,
"Since Camille's shield is specifically based off of her opponent's damage type, it's far less effective in teamfights than it might otherwise be in a one-on-one duel. Locking down that exposed AD carry likely won't be enough when a fed Syndra comes storming in. AOE champs in general are tough for the Steel Shadow: she'll want to slip past enemy abilities entirely, not muscle through a wall of explosions."
So, pick a top laner and a jg that do opposite damage, that way, one person can still do damage while her shield is active.
I went
top and my friend went
JG. We wrecked a Camille so hard that she couldn't even kill our support.
1v1.
If your team is even remotely smart, you will deal mixed damage as a team. In teamfights, watch when her shield comes out, if it is against your damage type, don't waste your abilities. Let your team clean her up for you while not wasting any non-CC abilities. Then, when she is EASILY bursted down, you can move onto the rest of the team.