I am serious: has any team ever lost on purpose/rested week 17 and then won the SB?
The corollary to that question would also be interesting. Has anyone ever lost a star player to injury in a meaningless game in the last game of a season that potentially cost them a SB? I can't think of any off the top of my head, but perhaps someone else can come up with one.
It's not really an issue of rest/rust for me since they're only going to do it if they are going to be sitting at home for wild-card weekend anyway. Rest shouldn't be an issue. Rust might be, but again you're still sitting for a week, rust could be an issue anyway. For me it's all about the injury thing. Do you want your star players in a meaningless game? I don't. The risk is greater than the reward.