Yup. “Cam action” is only mentioned in the context of the wedge shaped driver/bit squishing out any crud that had lodged itself in the screw. The entire idea was self-centering and better engagement between the driver and screw due to the wedging. The fact that it failed more gracefully is a side benefit at most, and more likely just sales fluff to compete against Robertson.

To be fair, I have snapped a few Robertson in my day, certainly higher by percent than the number of Phillips I’ve used, but that’s more than balanced out by the huge number of crappy Phillips heads that have been almost as totally ruined by camming out under fairly normal use with a properly fitted driver.