zm_penumbra_extended - Is this illegal?

[phil.™]

Map: zm_penumbra_extended
Cade: Putting the only vending machine where the tele spot is.
Location: Secret movie room
Description: By placing a vending machine where the tele spot is, whoever goes in will be stuck. Although, with 2 or more zombies pressing "e" on it, it can easily flip over.
We just played, and few players had questioning about the spot because it's "glitching a teleport spot", although it is quite easy to get into.

7278

[B1ackOut]

I have seen players flip it several times, you just have to do it right. Once flipped the people inside are dead. I wouldn't say that it its illegal but yes you are covering a teleport spot.