[NSFW] Why would a woman who could suck a bowling ball through 8 feet of garden hose be a good thing?

[NSFW] I have heard a variation of the term over the years, but they all point to a woman who could blow your socks off, or give you a ”toe curling orgasm”. If a woman literally could suck a penis with that much force, how could that be remotely good? To me it would seem way too painful to even enjoy, it would be like trying to masturbate with an industrial strength shop vac.