So the problem isn't the saddle or that they are tights, but just a crappy low quality material that is being used. Not surprised, all the Pearl Izumu stuff I've ever used was pretty bad.
I don't know about there other products. Mine are 3 years old, used for cycling and xc skiing and very happy with them. The few snags that have happened are from leaning on something or sliding on snow. Not exactly what there designed for.