I have these pedals and yes, they do naturally sit upside down. Apparently, they are suppose to spin around flat as they reach the top of the pedal stroke. They do, for about 1/2 a second before spinning around again. This isn't so bad on MTB pedals & shoes, but with road shoes which will slide off the pedal unless you get it clicked in, it becomes a nightmare.
I no longer use mine, they have been put in a box ready for training rides next summer if they are lucky to come out. I just got fed up of having to push off with one almighty downstroke so I had enough time & momentum to spin it around and click it in. Not what you want to be doing on a commute. It was especially a pain when you had to sit in the middle lane of 3 so you couldn't lean against a kerb or a railing.
I know everyone is different, but if you plan to use them for a commute, I would avoid them and get some double sided MTB pedals. I have notices little to no difference in the power of my pedal stroke since changing either.