Has anyone heard of Chorus techs coming back once a Fibre install has been completed?

A family member got Fibre installed, and the tech call a few weeks later saying he needs to come back and move the ETP outside about 50cm to the right, because it's too close to the house's gas line. He said it's part of the regulations/code so he has to do it - presumably trying to cover up a mistake if it's a legal requirement.

Is it just me or does this seem bizarre? Fibre isn't electrically live so presumably it's proximity to a gas line shouldn't be a problem right?