For the most part they are all crap and as other have said glorified candy bars. Avoiding all hydrogenated oils (yes even those little bits) is a proper strategy for long term cardiovascular and brain health. If it was a finibar or a snickers, I’ll take the finibar but other wise they all suck (and working in the industry I understand why–its hard as hell to get the right consistency, mouth-feel, taste, texture, etc. without the crap additives).
You could make a perfect bar but it would probably come out to about 7 or 8 bucks a bar and people want to believe they can pay cheap prices for good ingredients.