Uh, I got with the baby's flow, my oldest daughter was an excellent sleeper on her back. My youngest daughter was horrible, up every 15-30 minutes and both of us were miserable all the time. So I put her on her belly and that's how she always sleeps now, 9 months later. She was happier there. Now, I didn't follow the "guidelines" you just laid out. Which are great ideas to make it safer. But yeah, I was told that babies are comfortable on firm surfaces and with a blanket sleeper and and no blankets! Ha! Have you met my daughter, yeah, she slept on a comforter on her belly with a blanket over her. If not again, miserable for the both us. We also had the AngelCare motion detector, which helped me not be paranoid about it, but yeah it was an accident waiting to happen.
But I agree, i see no problem with and the best way to do it, is to eliminate as many of the risks as possible.