Though he says you can't launch more than one kind of missile at a time, I don't know if he checked voiceattack and alpha missile strike programs. It may be you simply can't send lock data to more than one kind of missile at a time.
Certainly this is a huge update for missile users. At 2:30 he notes the longer you are locked on a target, the harder the missile will be to spoof, so stealth missile attacks are going to gain a huge advantage as are missile attacks at great range.