It would be, but they will never do it, and claim "It is too complex for the other 99% users that don't know how to push tx".
This is not too complex, so I don't think somebody would claim that. But the more important thing is that, unlike other brilliant ideas on this forum, this does not create a security risk and does not enable users to shoot in their leg. (which would be a bad thing for a secure idiotproof device). To sum it up, I expect devs to implement it eventually based on their priorities and the amount of work involved.
edit: So it might be a good idea to e-mail support that it is not working for you and ask for this feature.