|Perspective here. This is what Quick Step does. It is a Belgian team built to win the spring classics. It is deep enough to field two different teams the same weekend because every spring, that happens. Almost all of the other premier teams are built to show in a grand tour. Being able to podium at a few classics is a nice bonus and great training, but that is not why they exist.
If you are a classics man, Omega Pharma/Quick Step is the top dog. Get on that team and you have made it. And because they will show up at all the spring races, you will get your chance to shine. Yesterday, it was Kwaitkoski (sp), well supported by 3 teammates in the break, one of whom launched an attack to soften things up. That was a team that did not have Boonen, Terpstra and a third of that power that slipped my mind as they were preparing for Paris-Nice. That is a LOT of firepower to not have at the start!
Classics are the bread and butter of Belgian racing. Belgians spend money to watch classics, support those teams and live and breath one day races. Yes, OP/QS will be at the grand tours, but for the true Belgian fans, it is almost off season until that other great sport, cyclocross. So it is hardly a surprise that the best of the Belgian teams is top dog at these races which are considered "early season" by all the GT teams.
I don't see any of the "are they doping" question here. Yes they might be, just as any pro rider or team may be. But their pure, Sky-like dominance is, to my mind, completely explained by looking at the essence of the team (and of their competition).