It can't go wrong when you can actually see the future.

Remember, per the creator Jadis explicitly has perfect sight of the future from her Key, which was also stolen by Zoss from Metatron. So Metatron almost certainly has some ability to see the future (to what degree is arguable - but if Jadis, a lesser human, has perfect future sight then its not unreasonable to say Metatron does as well).

10000 years is nothing to an immortal, eternal angel if your end goal is much greater.
Remember it was a "lesser" human who initially trashed all the prime angels.
And so far we have not gotten any signs from any angel that they posses future sight. Or know about other angels having future sight.

So its just as likely, if not more likely, that the future sight Jadis has, and that broke her mind, is a unique ability of hers.
Its certainly not an ability any other demi-urge has shown sight of either.