Rubbish.

There has to be a default. At the moment it is Sybille. If another player joins in multi-player their default is the Red Prince and Sybille is not available as she has been taken.

If you are saying that the default should be to ignore all the origin stories and make up your own (i.e. custom) then OK. I've no idea how it would make it better for anyone though as you are better off playing an origin first and Sybille is the most focused of the 4. For a start you always get an extra XP600 for completing whatever little quest it is with an origin player which you don't with custom and even that makes it a little easier at the start.

Unless your point is you just don't like origin I guess in which case you can customize your character before your start. You only have to change it.

If your suggestion is that origin players should have been created but somehow hidden as a secondary choice then I think you've missed the point. If custom was the default then by your reckoning, no-one would bother playing origin and the whole development would have been pointless.