The Nazca lines segment linked them to underground water, which is a real idea. It's not all drama, it just asks questions that regular history shows skip. Honestly, that got me interested in looking up the facts myself. The show might be flashy, but it can spark a real want to learn.
Seriously, I kind of disagree though. I mean, yeah it's got drama, but sometimes you need that to get people to even look at history stuff. If it makes someone like Thomas go and look up the real facts, that's a good thing, right? Maybe the flashy package is just how you get folks in the door now. A boring lecture just doesn't cut it for most people.