That does not look like WTC7 to me... I checked it out and WTC7 was a trapezoid shaped building with 47 stories and a red granite facade. The building shown falling in the video is a 20-25 story building rectangular in shape with a grayish facade. I think people are misinformed and confused.....WTC7 and the video are two completely different buildings..
*The original 7 World Trade Center (1983–2001) was a 47-story building, designed by Emery Roth & Sons, with a red granite façade. The building was 610 feet (186 m) tall, with a trapezoidal footprint that was 330 ft (101 m) long and 140 ft (43 m) wide.[1][2] Tishman Realty & Construction managed construction of the building, which began in 1983.[1] In March 1987, the building opened, becoming the seventh structure of the World Trade Center.*