No. I have a sweet tooth, so it doesn’t bother me. Plus, I only use enough to add a touch of flavor probably 30% or so of the recommended mixing rate.
Yeah, you can certainly do dextrose+fructose in something that looks roughly equal (some debate about the ideal ratio). But, both is better than just one (as I imagine you already know), and staying close to 1:1 is better that skewing significantly to one or the other.
That said, I find that the added sodium in proper concentration, significantly blunts the perceived sweetness. I’ve also used lemon or lime juice, and I’ve even taken it un-doctored without issue.
Obviously everone is very different in this regard. I haven’t tried the koolaid packets…might have to give that a try.