No More Classes?

[Mimilu]

People could have a CNJ base class and use DKN crystal, they would be a tank capable of using Medica II!! But with low HP and only cross class CDs.

I think a Tank or DPS with healing power equal to a Healer would be way too OP and would make it almost mandatory to play as the new jobs and could remove the need for Healers if everyone could heal at the drop of a hat.
1.0 played similar to this and most players wanted classes to have more distinct roles and limitations.