I don't think you quite have the right idea about a skinner box, Mesh. A skinner box refers to anything that rewards you randomly so that you never know when the next reward will come, thus keeping you thinking the next reward is right around the corner.
A Skinner Box is a device that let's you isolate a test subject with some device that they can interact with to either deliver a reward or punishment. The randomization is something you can do with it but it's not obligatory.
More commonly you don't /randomize/ the reward but space out the periods between doing the trained action elicits a reward -- which is applicable to idk MMOs.
Although the randomization thing still applies to SMG, honestly, since you're conditioned that if you... do whatever the level asks, you'll get a star, even if there's no logical connection between what you're doing and the star you get.
In any case it's still irrelevant since, accurate or not, Skinner Box is used in gaming parlance for any sort of push button, receive candy game design. SMG trains you to do some task, you do a few permutations of it, and you get a star.
Although I guess you can say that about a lot of games.
(Inexplicably enjoying Culdcept. It's like fortune street meets saga frontier. NEAT!)
--- edit ---
Actually here's the part where I admit that I'm totally fucked in the head: I can't tell if I actually dislike SMG, or if I'm making myself dislike it to prove a point (and what that point is isn't clear to me, although it probably related to Twilight Princess and my disdain for the word euroshmup).
Although this applies to everything. And it's not just me being contrarian it's like I'm trying to /narrativize a personality/ out of the /sum of my emotional response/. Except I'm also having both positive/negative/neutral responses at the same time and I'm arbitrarily picking one to believe I'm actually feeling.