Personally I have nothing against anti-piracy systems. But I do not like the fact you have to stay connected while you play. My greatest concerns are about the possible (not certain) unreliability of this system.
So how about an offline mode? Yes, for me at least, it's a good idea.
But I would like to have a backup copy also...I guess they could provide an online authentication service and the possibility to make "certified" backup copies for the registered owners of original sh5.