people say that, but whenever i look at videos, i have yet to see a full crafted gears character take down all hard ubers. they always wear a couple of specific SU's (especially weapons, body armors and magic resist pieces). not saying its impossible, im saying its more efficient to have sacred uniques laying around.
and even if it were true, minidrekk is a brand new player. no way in hell is he going to be able to clear everything with crafts.
but to answer your comment somnus, yeah i do agree too that having a good non-gear reliant boss killer like an uhc paly/sin/barb helps to progress by gathering all the easy/tricky charms, but he is going to need an efficient area farmer, and these 3 dont qualify.