Hey Hemp22,
To clarify, we do carry Aliens and have done so for several years now.
As I am no expert in the field of metallurgy, I most certainly cannot say what constitutes a valid test, nor a sufficient sample size. However, I do believe the point to be valid that testing of damaged gear of any sort yields little in the way of valid results, though it is interesting to learn of the degradation of strength that occurs from use and exposure.
I would suspect that cams from other manufacturers would undergo a comparable loss of strength when subjected to similar conditions, though in truth it is merely a supposition.
You are correct that my experiences and those of my climbing partners are in no way an indication that all cams built by CCH are safe, but from taking and witnessing literally hundreds of lead falls from a few inches to stomach-churning, my experiences have been quite positive. In the end, first-hand knowledge and experiences are the best I can offer in any discussion; hopefully, it helps to create a complete picture of users' experiences.