... surely most people will be using an audio interface anyway?

His point (that you and the other commenters are intentionally ignoring) is that he could be the target demographic, if Apple had made their mobile platform a little more flexible/"pro".

I missed the /s tag. Of course any sane musician would want to hear the sounds they are creating.

Other comments in this thread saying that a specific concern is inappropriate because something something target demographic are snobbish.