First, I love the use of the royal we. People think I'm arrogant, but you might have just taken the lead. That's just down right pompous.

Second, I don't think anyone ever accused a PSK of being a fully equipped kit unless they are intentionally trying to dismiss something whose role they don't understand. It is not intended as a full kit, but as a supplement, in much the way a pocket knife can not replace a fixed blade of robust design. Anything that can fit in the pocket or miniaturised, be is a pocket knife, a pocket calculator, a laptop computer or a PSK, is a compromise favoring the skill of the user. Forgetting that, or forcing a tool to be more than it is, is not a negative reflection on the tool or it's designer, but it's user.

By your reasoning and requirements we can not fit "all the items necessary to a true survival kit" into any portable package, as you seem to be implying that a kit should also contain a sufficiency of air, water, gravity, fuel, shelter, food, medical support (with trained medical staff), et al. Where would you draw the limit? A PSK is at the top end about 20 cubic inches; at the other end, I don't bother with packs over 3500 cubic inches. You carry the gear that you can fit within the limits of what you are willing to carry. Personally, I find the claim that a PSK is too little to be a very interesting statement from someone who once said that most PSKs had too many items.

Which is it? Too many items, or not enough? You can't have both.