You have just described the problem with Simply More... It encourages new cruisers that like all-inclusiveness, and it comes up short.
Why upset the regular cruisers, I wonder? The ones that are happy with the quiet days, and choosing whether to have shipboard credit or drinks package?
Some don't mind the sedateness, they make their own fun and enjoy the cruise. No need at all for pool activities and "art" auctions.
I do also hate pool lounge hogs!!