This is an all too common Code violation that Russ finds in the field. Using raceway as a means of support for communications wires and cables is a clear violation of Sec. 800.133(B) of the 2017 NEC. In this particular installation, the weight of all those extra wires and cables (and another raceway) jeopardizes the integrity of the electrical metallic tubing (EMT) supports.
Moving Violations Video No. 180: Strain on Supports
Russ finds an all too common example of misused raceway in violation of the NEC.