My opinion is that it's mainly unjust to have invested so much in growing it to destroy it. Mistakes happen and this is the right decision for now given the situation but it is wasteful.
I've noted this elsewhere but "injustice" was semantically baked into the OP so I retained that wording but my brain really stretched the term here to align better with "wasteful". I can certainly argue to their equivalence but I think if multiple people have gotten hung up on the term I've committed a semantic misstep.