I ran into this, and was a little miffed by it as well. However, after coming at it from a feature development standpoint, this is probably something that would require a whole line-one rewrite of the Glamour system to change. It feels like the Glam Plates we have now are only a placeholder, and are the first step towards that major change, which I'd bet probably won't be completely finished until 5.0. Really, that kind of systemic change can run deep, and/or there are more important things to assign development resources to right now.
Yeah this is just inexcusable, and really always has been even with screen status messages when changing job gear. At least give us a separate filter channel for "glamour changes" so we can shut it off ourselves.