3/4 is better than 2/4. It is a step toward the right direction at least.
Don't forget WHM is suppose to be the simplest healer to play. If you add utility to it people will be expecting you to use it, and if you don't oh boy all the bad things that are coming your way...
It will be like running a dungeon with AST not drawing a single card. You won't like it.
Aslo, adding utility to it would have to be something that fit 'pure healer' image the WHM has. Because you don't want to have something that changes the job completely.
AST has cards since level 30.
SCH has their fairy since level 30.
WHM will have (something) at level 60+ ? Sounds like rebuilding a job.
If you have an idea, it could be a new healing job with this certain utility and leave WHM the way it is.
In the end, all games have simple and complex roles to play. Trying to make all of them on the same level is bad.
You are taking the easy choice away from players that need it.
Look back at SCH and AST. They were not changed but rather there were buffed/nerfed.
What WHM needs is a buff, and the only thing I can think of is better MP recovery.
Edit:
Just to clarify I am not against WHM improving or being more useful.
It is just hard to think of something, buff an ability to do something different. because changing the job to do something different at level 60+ doesn't seem logical.