The Dr1 wing design was so strong that it didn't need struts and wire bracing. The struts that were added to the original design were not necessary and were added simply to reassure the pilots who were uncomfortable seeing the wings flex. The top wing failures that occurred were reportedly manufacturing defects not design defects.
Aside from manufacturing defects, the top wing could also generate much more lift than the other two, leading to it disconnecting under high-lift scenarios, for obvious reasons.
Have we seen any evidence that the Dr1 couldn't handle more G loading than the Camel or DVII ?
Evidence of such is notoriously hard to come by with WWI planes. We are left with combat reports, which stress the Dr1s strengths as being climbing and turning ability, and its weaknesses being slow speed and tendency to loose the top wing. The topic of what to do in the face of lack of much verifiable data for the grist has been discussed before, and I believe if there is a certain amount of guessing involved, it makes sense to fudge things in the direction of good gameplay, rather than the opposite, IOW, in the direction of rough equity in plane strength.
