Yes; a major fail indeed with the limited cut depth. I'd also be concerned about the 1200w motor when using the saw for rips in framing lumber. I'm not a Festool hater, I have a pile of their tools and generally find them to be very good, but I'm not so sure about this one. I'm looking at the Mafell KSS60; it is bigger, heavier and more expensive, but it also looks like it would be a much more capable saw for framing.
I agree this should be marketed as a light duty carpentry saw. Not demonstrated cutting did mention all framing lumber. It's misleading
I have the HKC, it is more of lighter duty saw, like most other cordless saws. On the plus side I would say it is a pretty capable saw for only being an 18V tool. By cordless saw standards I would the HKC is a more of a medium duty saw.
I can't comment much from first hand experience on the corded HK saw, although I do have the KSS400. Still, I'd like to bring up a few points. The HK/HKC, and the other cross cuts saws are able to cut much more efficiently because they are on a rail. Running a circular saw freehand there is, relatively speaking, a lot more binding of the blade, and you'll need more power to over come that binding. With my KSS400 (with 1100 watt motor), with angled or beveled cuts on 2x10 or 2x12 material you hear the saw working harder. However, I've never felt like I was overworking the saw. Also, your typical sidewinder will moan while beveling a 2x12. One last point that we need to keep in mind, Festool has the HK85 for heavy duty cutting, so they have accounted for that market (in Europe at least).
I guess my opinion is the 160mm blade crosscut saws aren't light duty from my experience, and probably not heavy duty either. They fall in the middle, right where most people's needs are.