No, it's not what you think! While we're not the biggest fans of Capcom's decision to port Dead Rising to the Wii, this isn't us dwelling on it, like some shooting-fish-in-a-barrel thing.
We're only sort of dwelling on it. See, while this clip - highlighting the differences between the two versions of the game - does show that certain sections of the Wii game just aren't up to scratch (what do you mean there's no time for joyriding?), it shows others aren't as bad as you'd have imagined.