Yes transferring to the secondary has some risks. Anytime you move the beer around you introduce oxygen. Oxidation will give your beer a cardboard like flavor. Also, you run the risk of infecting the beer. Both risks of infection and oxidation can be minimized with the proper techniques but why risk it? What the benefits? Let the beer settle out in the primary and there is really no need to transfer to a secondary. IMHO the risks out weight the benefits.
Bah. by this reasoning, making homebrew vs. buying beer at the store isn't worth the risk since it might not turn out.
If you transfer properly, there is no risk. If you can't rack to secondary without oxidizing the beer, you'll never get it into the bottle or keg without oxidizing.
I agree...all beers do not require a secondary, and some styles will suffer from it.
For me, I get MUCH clearer beers with a 2 week secondary, vs. a long primary going straight to bottle.