You're missing the point. A real control deck like Landstill, control version of The Rock or The Mighty Quinn has turns to spare. More often than not you just sit there grinding out the game waiting to draw the win condition. In tournaments, this leads to alot of draws. That's there Scrying Sheets comes in for the monocolored nonblue control deck (could also be MBC I guess). The only way you can get a use out of Scrying Sheets is if you get the time to use it and you have a certain amount of Snow cards in your deck. We talked about the time part - this is what Control provides. The Snowcount is only achievable if you run basic snow land - since the snow dual lands are terribad, hence you have to play monocolored.

TL;DR: your point with Death and Taxes is moot. But then again, I guess that's fitting for this thread