Let's take apart this strawman by explaining the real sequence of events.
1. Towers 1 and 2 were brought down by top down controlled demolition
2. During the collapse the fires were started in buildings 5 and 6 by hand.
3. Since the NWO isn't going to let a small thing like wind direction screw up their plans, they activated the systems in building 4 to fake the smoke in building 7.
4. Using simple suction and pumping technology that has been around since the water well and the vacuum cleaner, smoke was channeled from buildings 5 and 6 through the subway system and into building 7.
5. Since wind is chaotic, some of the smoke was going the wrong way compared to the rest of it. The NWO used an invisible Maxwell's demon modeled off of bigfoot technology to distribute only the south traveling smoke into the building 4 distribution system while sorting the rest of it to fly freely in the direction of building 7 creating the wake vortex effect that along with the smoke pumping system created the illusion that building 7 was on fire.
6. With the sheeple fooled, the NWO was free to use bottom up controlled demolition on to bring down the evidence in building 7.
Couldn't be simpler. Care to explain how the direction of wind is relevant now, shill?