I'd say a bigger problem isn't that undergraduate psych is easy, but rather just that _so many_ students that don't really know what they want to do take it, causing like a permanent glut of psych undergrads.

My major was also very popular, but about 1/3 students in computer engineering drop or switch majors, most after the first year. Fair or not weedouts and things to reduce the glut of undergrads. At least at my school the graduation rate for the psych school was way higher.