Nice to see you spotlight pauper again . It's interesting that you report only the 4-0 decks, not all the winning ones, because I think overall storm is less dominant than it appears on your numbers, and post and delver are a much more common. I'd say those 3 decks combined make up about 60% of the meta usually, fluctuating a little between them each week. It's nice to see a good showing from my favourite deck there (mono green stompy , it's a completely fair creature based aggro deck that can still do well in a deck full of insane combo and hardcore control decks.
And yes, that 8-post list is about as pure a control deck as you could ever ask for. When your wincons are mulldrifter and a singleton rolling thunder (with capsize to stall), you know you're in for a long game! Many of the lists run an ulamog's crusher too for another wincon.