You may be right but my average round count in our local IDPA match for 5 stages is less than 80 rounds. The maximum number of rounds by the rules are 18. And, the cylinder is fully supported by my hand before the Comp III is pushed. Slamming a speedloader into a GP or SP unsupported can lead to others problems. In fact, this may be a weakness in the design because although I have never performed unsupported reloads, both an SP (which Ruger replaced) and this GP had major failures with the crane assembly popping out of alignment.
USPSA or other high volume matches wears out guns much faster.
Perhaps my expectations are too high but as we know, most handguns will never reach 5000 rounds and manufacturers recognize this.