I’d contest this. During the War Campaign, you get the option to talk To Umbric about his motives. He said the following.
"As a magister, my duty has always been to Silvermoon and its people. When the mad Arthas devasted our lands, I knew we must harness every power available to ensure our survival.
Prince Kael’thas proposed one way. I sought out another."
This is evidence that they were very much aware of the parallel thinking involved here. So yeah I don’t think it’s fair to say the devs put zero thought into this, even if void elves were an asspull.