Even as someone who supported it. Perhaps there was internal built up resentment.
Whatever it was it showed in their communication.
Very occasionally I have to communicate on a topic I think could see backlash based on internal views. I make an effort to communicate it as neurally as possible.
My org currently prefers a saccharin approach when there is controversy I can't stand that, but I prefer it to over the like it or lump it bristling with rage approach Python took.