Does it help sprinters then? I clearly remember Cav catching and passing Haussler on a rather unremarkable (save for the low weight) Scott Addict at 2009 Milan-San Remo. I'm just going to say, in a team sport where you spend most of the time cheating the wind by riding on someone's ***, an aero frame will only make a difference to someone riding a longish solo breakaway at high speed. And as a further reminder, most of the wattage savings these marketing/R&D clowns come up with only materialize at speeds that simply don't happen in real world situations.
It's not a big deal to simply admit that the S5 is simply another overly expensive carbon fiber race bike and a serves as a way for Cervelo to whack their loyal cash pinatas yet again. It's just a bike, yo.
You ever hear of the term "Product differentiation?" It's a key marketing goal for almost any company with a product. The motherboard of this PC I'm currently using touts itself as "military grade" because of the type of PCB it uses. They claim it's better performing and longer lasting; I have no idea if it's true. It's just something MSI markets, effectively distinguishing themselves from ASUS, Gigabyte, etc. Fortunately, in the PC enthusiast world, we have actual benchmarks that can irrefutably demonstrate which systems/components benchmark better than their competitors. And then do crazy things, like come up with price/performance charts. Which is why I chose this particular mobo, it was a nice breaking point for said price/performance.
In cycling all we have is some bull**** some jerk at Specialized tells us, which is then repeated ad nauseam by almost everyone involved in cycling. Except for people here, because they're all cool as ****.