I worked in a 2 story building that had data closets on each floor. From each closet, there were typically 20 to 50 cables that went into each room on that floor (many rooms were small data centers). What was confusing for the wire and cable contractor was how each room was done. They all had raised floors, but some rooms had AC units that blew under the floor and some did not. Some had smoke detection under the floor and some did not. Some had fire suppression systems under the floor and some did not. They pulled CM because the first room they did had no AC units blowing under the floor. Then they did one with an air handler and failed because they didn't use CMP. They they were OK on another one with CM because there was fire suppression under the floor. Then there was the fire inspector that said a handful of non fire rated cable was OK if there was smoke detection (this was for video cable under the floor), so I asked for the fire inspector with the largest hands before we had to pull stuff out.
So in the end, the cable contractor just pulled CMP in our building to avoid problems even though it cost more (they would use 3000 to 20000 feet of cable per room typically). A room that had no AC unit today may have one a year from now, so that eliminated any cable replacement costs. The biggest problem was computer video cable (like BNC or HDMI) that were long and needed to go under the floor. Finding those in plenum were difficult. Other interconnect cables that went under the floor were also impossible to find with marking other than AWM. CL2 was rare, and CL2P was even more rare. Military cables were never rated which was even worse. Things just got strung under the floor as needed, no electrician, no inspection.
So in the end, the cable contractor just pulled CMP in our building to avoid problems even though it cost more (they would use 3000 to 20000 feet of cable per room typically). A room that had no AC unit today may have one a year from now, so that eliminated any cable replacement costs. The biggest problem was computer video cable (like BNC or HDMI) that were long and needed to go under the floor. Finding those in plenum were difficult. Other interconnect cables that went under the floor were also impossible to find with marking other than AWM. CL2 was rare, and CL2P was even more rare. Military cables were never rated which was even worse. Things just got strung under the floor as needed, no electrician, no inspection.