PlanetSide 2 certification system was a blatant attempt to sell power because there are so many different things you need to do in PlanetSide 2. Sure you can focus on one thing and not pay money and be good at it in a relatively decent timespan, but if you're a committed player you want to be good for every situation that arises.
That's different than the LoL model -- in LoL you can pay to quickly get a hero/get all the runes needed and pick that same hero, or at least the same role in almost every single game if you wanted to, because you can only choose one hero per game. I'm afraid that multiclassing will once again force you to pay money if you want to be a versatile/competitive player without having a ridiculous multiclass grind (which I have a sinking feeling will be of similar lengths to PlanetSide 2, which Smedley has compared to EVE), because you can mix and match classes, and MMOs are persistent games that are constantly forcing you to adapt to what situation you are in. I'd much rather it where you can play one class at once, whether it be MOBA hero or Diku MUD style class.
SOE's main problem with their F2P system is that they sacrifice good game design (i.e. PlanetSide 1 certification system of leveling giving you access to more choices - no power gains, period) to implement however they're going to make money in the game. Theoretically it's not pay to win, but when you take a system intended for MOBA games where you only play one hero for a match and put it in a persistent MMO world, it sure feels like it.