[Retroman]

It was said they weren't very impressive vocally...
But they had the look.

Personally I think the "look" just meant that Simon fancied them and they were really good looking girls.

So yea, they won't do very well.
Not unless they improve dramatically before Boot camp.
Good luck to them though, because if they increase their vocal talent, they'll be flawless.

Providing they have good personalities.