Trust me. I get it just fine.No, you still don't get it. Reread King's post. Fast boats are typically more difficult to sail to their rating, because the rating is based on racers and often better sailors! Cruisers are often fully loaded and sailed by mom and pop crews. Put a pro crew in in a stripped cruiser in you will clean up a handicap field, like cheating. It is much more difficult to dominate a puer race class.
I only ever enjoyed one-design racing. No BS, you finished well, or you didn't.
I find just the opposite. Particularly in W/L situations, 'fast' boats are easier to go fast in a wider range of conditions. That have more sail shape control. Slower boats typically have a narrower window of 'great' conditions.
Also, PHRF ratings are designed to represent a boat in top-shape, top-crew. US-sailing supplies analytic tools the reporting fleets to make sure that the 'cruiser factor' you mention does not get factored into the numbers.
Anyone in a Catalina 22 who routinely beats me in a J/22 in a W/L race corrected; I will bow down and call them superior.