the new fashion of lanyards in knife cutting competitions is to lash the knife to your wrist via the ricasso area. the reason for this being that the knife will not swing directly into your arm as readily as if you lash it by the pommel - something that has happened before during competitions at blade.
If you are going to be securing a knife to your wrist for any reason, its generally a safer idea to lash it by the center point rather then the rear point if you are going to be doing heavy chops with it.
at least, thats as I understood it...
edit: erased having read through the complete post, and changed after this point
If your going to argue with choils - none of the small blades should have them. If your going to argue that there should be a distancing from the blade edge and gaurd or handle so that you can "sharpen to the very edge of the edge" - the choil should be a nick in the blade, not a visible noticable gap. The talon hole itself has absolutely no effect on how a small choil is useless as far as I'm concerned (and me saying a small choil is useless is my own opinion, if someone else has a use for it that is valid, then good

).
As far as it over extending your grip by distancing your index and middle fingers - you cant have a guard and a usable choil at the same time without doing that. and I like guards. I hate choils, any choils no matter how "usable" they are, but look at any knife that has a functional guard and a choil and your in the same situation as busse. if your going to say that 1/8" spread distance over something that has a small ultra thin strip of metal functioning as the bottom guard is far better then the larger busse guard because your hand is in more of a closed fist position, I consider that a general personal comfort issue rather then a serious design flaw. I say this because having a closed fist position when choked up holding the choil doesnt necessarily aid in the hands ability to do detailed work, it just determines whether your hand fatigues quicker. I hate them all together in the first place, so I'd have to default to those who have used the choils a lot in the "extended index finger position" to see wether or not it does actually fatigue the hand quickly.
I've used knives with no guards where the edge comes up to the hand and I hated it, it was straight up dangerous when greased hands. I've used the choil portion of large blades that had the busse rounded guard for "close up detail work", and I found it either equally as dangerous or pointless compared to gripping the back of the blade.
SO.... Honestly, I have zero problems with adding the "talon hole" to the guard -
all of my problems lie with the choil itself even being there in the first place. The only functionality complaint you presented was that it made the hand position when choking up uncomfortable because of how wide the gaurd becomes with the addition of the talon hole. I say that the difference between other guarded knives that have choils is small, and the benefit of a safe knife to wrist lashing point outways this, since choking up on the back of the blade is generally preferable from what I've personally experienced.