On my manual safety CZs, I decock by using my thumb to block and roll it off - a safe way to do so.
IF your pistol has a decocker - use it.
I do think the complexity of the decocker CAN be over emphasized. However, the ease at which one can service the Omega model is pretty amazing in comparison. Some of us are old enough to remember when no one was detail stripping the P01 and BD models. Not on their own. This came over time. I do find that getting the sear cage back in is a challenge - doable, but sometimes things just don't want to align.