Lets have class only abilities and spells

[Kiote]

If it were, you mind explaining WoW to me and the mountains of casuals who play that game, last time I checked the classes in that game were set in concrete.

The WoW phenomenon is very easy to explain.

First of all, it was the first MMO to actually advertise itself.

Secondly, it was so easy you didn't have to worry about wasting effort on a class, after the first one you instantly knew how to level another one in a week.

Finally, it was Most peoples first experience with an MMO and as anyone knows, there is never another one quite like your first.

These three factors alone created a perpetual Cycle of:

You can jump back in any time, you will never forget how to play and nothing will ever be the same.