As I pointed out, I'm not wishing to be contrary and certainly accept that obviously CA hinges have some general acceptance. It might be that it boils down to application parameters, the size of the plane, the throw of the control surface, and the flight time the plane will get.

CA hinges obviously have a life span that will vary depending on how many times flexed, how far they were flexed and what stress or loads were on them and the particular quality of the hinge.

Admittedly, I do not have any CA hinges on smaller models with less throw that might get flown far less so they may very well serve such.