Just my opinion from a low time CC EX-2 builder/owner/mechanic (I guess I'm rich but didn't know it until this thread
). I have never owned a SuperCub and would be considered a low total time pilot.
Why are CC lighter; I obviously used this website for A LOT of information when building the EX-2. Obvious differences are carbon floor boards not plywood. The cowling is all carbon and extremely light. Side panels are also carbon. I'm sure there are other things but these were the obvious. With modern materials and engineering analysis tools, lighter weight does not equal a weaker structure. Not sticking up for CC, obviously time will tell on longevity.
Ground Looping CC's; having almost no TW time I hired a local, highly recommend cub CFI and flew 15 hours with him. Knowing that you need to fly in conditions that aren't perfect, I have pushed myself to do pattern work in windy conditions. I kept track of crosswinds and would know what I can do, then look for calculated opportunities to expand my skills. I now have 111 hrs on the hobbs since becoming airworthy in Oct. Not bragging here, but I think you guys are correct about people buying planes and then have a bad experience. Trust me, I've had my white knuckle experience but came out a better TW pilot. Maybe it comes down to desire and drive to do the right thing.
For me, living in Idaho as a recreational pilot that's learning to fly the back country airstrips, the plane has work very well.
In some regards, CC has done a tremendous job on marketing and with all the UTube stuff, it now seems popular to have a 'cub' type plane.