Wings instead of JUST flying mounts?

[Avidria]

I thought that it was obvious from my comments above...

To answer your question:
Because of lazyness and or convenient/easiness. Whenever a possibility arises to do certain things faster and or easier, people will do just that.

I think you're misunderstanding both what I'm asking you and what the OP is asking for. Wings would, in all likelihood and as requested by the op, act exactly the same as any other mount. They wouldn't be any faster, or more convenient. They'd be purely cosmetic.

What I was asking is why you were assuming that they wouldn't be exactly like any other mount.

Eh... no please, no more AION..

People keep saying this. Did people really hate flying in Aion or something? O.o