I would correct that to say you don't need as much rice hulls when conditioning, one of my favorite beers is only 41% malt barley, the remainder is rye and other huskless stuff, that beer gets a glucan rest AND hulls and still takes twice as long to lauter as most of my other beers.
I haven't had a problem yet letting the grain set for a few minutes, unless I was overzealous with the water. I used to calculate how much water to use and measure carefully, at this point I just go by feel. I mill the night before brew day so over wetting the grain when conditioning is really not a good idea.