The system doesn't have to be fair for it to be better. So Symantec and Verisign can use their clout to get around the rules. Fine. Let the system be unfair to the smaller CAs, and better for end-users.
Nitpick: Verisign isn't in the CA business anymore, Symantec bought it.
Let the system be unfair to the smaller CAs, and better for end-users.
But how is the system better for end-users? If a big CA fucks up, they're either at the risk of being MITMed or of having half their secure sites stop working. If no CA had more than, say, 10% of the market, a fuck up would only affect a small number of the sites they use.