User blog comment:DragonbornMAGE/Short view on Dwemer disappearance/@comment-26474238-20121230093048/@comment-26474238-20130101023737

And no, the Dwemer were not planning for this to happen. If you go through the dialogue with Yagrum, the last known surviving Dwemer, he will confirm that they were playing with the dangerous unstable magic of a rogue God, and it backfired on them when they cut thier connection to the heart pre-maturely during their haste due to the current war that they were losing.