Then why bother putting the info up in the first place, Ix?
Their statement aboust using NAIPS, to me at least, doesn't come across as a warning. If they didn't want us to use it they'd say so explicitly (for example "Not to be used for planning"). Government departments are generally pretty good at trying to cover their own behinds aren't they?
BTW, I'm not advocating using BOM routinely as ones sole source for forecast info. It's more when NAIPS falls over like the other day. I'd be confident that one would be still safe.