The ‘need’ to move the grave was an issue when Scampton was up for disposal in the 1990s shortly after I went through CFS there. The story I heard at the time was that the dog was pretty unpopular with the ‘erks’ as he tended to crap everywhere, when Gibson tasked one of his NCOs with burying the dog at midnight, as they were attacking the first dam, he in turn detailed a couple of airmen for the task.
They simply chucked the body over a hedge outside the camp then disturbed the earth in the flowerbed and reported ‘job done’.
So the gravesite is just symbolic. To move it though does seem unnecessary, if the migrants really took offence (should they even understand the significance) then it could serve as a first adjustment to life in a new land, one with its own history that shouldn’t be wiped away in a frenzy to accommodate people that have illegally entered the country.