You're pretty much asking to rewrite the mechanics of the game.
Pretty sure that's not gonna happen.
/rant
The only problem I have with targeting is that it's clunky and overly complicated. Targeting should consist of holding a hot key and clicking on what you want to target in order. The first thing you lock is automatically primary and when it dies, the next thing that you locked is automatically pushed up to primary. No clicks needed, just automatic bump in the meat grinder queue. If you decide that you want to change targets, simply mouse over it and give it a single click.. presto! Primary!
The current method is one hot key to primary something, another hot key to select secondaries, then, when your primary dies, we have to perform some more keyboard and mouse Olympics to shoot at another target. God forbid you click on anything else on your screen in between selecting primaries and secondaries, cause now you've just un-highlighted your next primary and will have to click on it again and then hit a hot key to make it primary.
Of all things that should have been lifted from EVE with no changes, targeting should have been one of them.
/end rant