We are still talking about Savage Worlds, aren't we? Because the target number in Savage Worlds for everything, except melee attacks and damage, is always 4.
Sure, bonuses and penalties can shift the number you need on your dice, and maybe you actually want a Raise (or two, or more) for the particular instance you're rolling for, but the TN is 4.
Maybe you're in a Deadland, facing a critter with Terror (-4), and zero Grit. Your Guts TN is 4, with a -10 penalty.
Or maybe you're in a firefight, at long range (-4), with critical wounds (-3) and deadly dehydration (-2), in a pitch black cave (-6), but you saw his muzzle flash and at least know where to shoot at. The TN to hit your target is 4, though you do take a -15 on the shot.
Or maybe you're the best-looking, slickest-talking, best-connected, rich socialite in the Big Easy. You're trying to convince a local politician to do you and your friends a favor. The TN is 4, even though you have a +10 to the roll.
Yes, in particular instances, there is a small (2% or less) oddity in favor of a smaller die type. However, the basics of the system mean that bigger dice are better. Those particular exceptions are aberrations, not the commonly-encountered elements around which characters should be built and advanced.
If you wish to continue this discussion I'm willing to do so (though another thread is probably a good idea at this point).