Myself, and the NETRA guys here live in and ride plenty of rocks. I've seen the pics and videos of Brock Creek and it looks just like my backyard, not to mention Hancock, NY and the WEC sections. Cruiser's stuff in PA is no cake walk either. Perhaps I'm just eaiser on my bikes in this respect, as I'm never absolutely sure when I can get a new one. I could wreck a bike fast here too if I leaped without looking. Racing is another matter, but the races are usually not as extreme as our trail riding. BTW, If you want to see some terrain REALLY hard on bikes, ride in Kauai. I'll agree that if I dropped off a three foot ledge onto another rock and cased the bike, the frame would probably take a beating with the Hyde. An alloy plate may be better but your still transferring all the energy to the frame rails.
I've destroyed both Flatland and CRD plates, and hammering them straight was regular maintanence. CF pipe guards are only good for protecting against smaller dents, and that only when new. They also trap a lot of mud and contribute to the pipe corroding underneath. The classic KTM style chain guide is crap. The aluminum frame bends and your screwed. The OEM GG guide flexes. The LTR mount for the Honda XR guide is great, as the guide itself flexes and returns and better protects the rear sprocket. I now run the Scotts one piece shark fin/carrier, but have previously WELDED the bolt on EE or Moose fins to the OEM carrier. If you bend it, you can bend it back with a tire iron in the slots.
If you know what works for you just do it. There is nothing that you can't get for this bike that you can get for a KTM as far as pipe protection. If you have the bucks, get a Hyde combo or Whipps and a Mecasystem alloy plate, and build a hybrid.