They have to please MMO users and TES users. This game will do fine.
It seems like it's not a game you are looking for. Sorry about that.
inb4 lockout if it turns into a subscription debate!
I'm having a bit of trouble understanding you, but I think you're saying that ESO's class system will cut down on freedom?
The class system in ESO is very different from most other MMOs.
Using it as an example, in World of Warcraft, a Hunter can ONLY use light armour, ONLY use crossbows/bows, etc.
In ESO, your class is more of a loose guidline. If I pick the Sorcerer class, I could become a 2-handed warhammer warrior in heavy armour, or an archer in medium, whatever combo of gear and skills I want. From what I can gather, your class will give some abilities suited to it's role, but you are not forced to play that role at all. A Nightblade, the "Stealth" class, can be a tank if they wanted to, for example.
And since you choose what abilities to invest your skill points in, you're allowed to pick and choose what you want to do. Apparently you can reset skill points as well if you don't like what you're running.
This actually allows for a lot of freedom in character builds.
The point to keep in mind is that only three of your skill lines come from your class.
You also get a skill line from your weapon (any weapon for any class), your armor (ditto) and various other skill lines you'll run into (race, guilds etc). Your class winds up providing a minority of the skills available to you.
You can play the game without using ANY of your class skills, if you want.
In other words, there is more than enough choice