[ZScript] Why hasn't DHudMessage been exported to ZScript?

[phantombeta]

For some reason, DHudMessage doesn't seem to have been exported to ZScript.
There's some cases where you don't want to or can't draw things by overriding the statusbar or using a RenderOverlay event handler, and right now you need to code it yourself if you want the message to do something like fade out.
So, is there any reason for DHudMessage not being exported to ZScript?