Ridiculous Coax install job

Went to a relatives to help run cables for security cameras. They said they just had xfinity out a week or two prior to run coax into the house for Internet. Figured we would run the UTP cables next to the coax entry (or better yet, through the same entry into the gang box. Noticed the coax faceplate in the office wasnt flush. I also noticed it was kind of close to a window so was wondering how close he was to the framing stud. No biggie, figured just needed to tighten it or, worse case, remove the faceplate to make sure the box / bracket was seated all the way. Went to tighten and the screws just turned. Weird. Ok, figured maybe the tech stripped the anchor holes. NOPE - see attached pics! The plate, once I removed the screws, wouldnt budge! I had to rotate it to remove it from the RG6!! The Xfinity tech not only did not use a low voltage box / bracket - they literally just screwed the faceplate into the drywall. Couldnt figure out why they didnt use a box, until I removed some of the drywall around the entry point (in order to properly use a bracket/box). See attached pics. As I was concerned about - the tech chose the spot there was a stud. The fact that it was near a window should have been a clue there was a framing stud there. Hit the stud, drilled through it anyway, then just shoved/jammed the coax through the hole, twisted the faceplace onto it and screwed the faceplate into the drywall. Probably one of the laziest / ghetto installs I have ever seen. I've seen better work from HS students in shop class. Choosing a spot two inches over would have solved the issue and allowed a proper install (I used a stud finder to verify it to install the box for the UTP cables). We placed a frame to at least allow the faceplate to properly sit. Didnt even have enough slack to properly use a box.  Their was ample space on the exterior wall to find a spot that didnt have a stud.