The way I define "bug" is that it has to actually negatively impact gameplay. I'd prefer to call it a "glitch" because we talk about benign glitches all the time, but the term "bug" seems inherently bad to me, like it bugs you. I realize that people define these terms in different ways, but I don't see why it should be dev-specific.
That said, there was an actual bug in the game, and I'll admit I behaved horribly in this comment section and made only feeble attempts to rectify it. I'm not deleting anything because I need to take responsibility for it, but I apologize that you have to read those comments.