You mean, people with experience, an understanding of bike geometry, and knowledge of bike attributes, who share their opinions? Isn't it the goal to learn from people with this type of knowledge?
It's not about "harm," it's more about
optimization and using the right tool for the job.
Again, IMO the CF frame won't spontaneously shatter the second you put a bag on it. However, if it isn't done right, you
can in fact damage a CF frame. E.g. if you use p-clamps to attach a rack to CF seatstays, and torque it too tight, you can crack the seatstay. I'm confident nun knows not to do this, but a novice tourer who wants to use a CF bike might not. (Nun is also saying this particular CF bike has many aspects which are suitable for touring, but I'm not all that convinced.)
It's like eating a steak with a spoon. It won't kill you, but it might not work as well as you'd like.
In which case, you're might run into the kinds of issues we're discussing, depending of course on the nature of the frame and components.