The nlr as stated by others can bug out and state someone is in NLR when not.
As of your video, you wasn't ever teleported, the admin simply phygunned you as you got Gluoned which when you respawn, it will put you back at the physgun location, which that video shows, and also shows him the trying to pull you OUT of the wall it spawned you in.
I wouldn't say this is admin abuse, as he most likely saw a NLR tag, went to phsygun in which you died, causing the next events of spawning in the wall to happen.
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