Organisation addition approval

When an administrator invites a user to an Organisation, and the user accepts the invite, the administrator still has to approve this. Could this approval step be skipped? I know the fingerprint verification can be skipped, but it would be handy if a user is just in once the invitation is accepted. If not it is confusing for the user (I know, there is a breadbox, but still) and annoying for the administrator (who sent the invite in the first place).
I cannot imagine a use case where an administrator invites someone, and then wants to reject their joining -- there is no new information, there is no need for the approval step (if the fingerprint check is skipped).