<nope>The owner in the extension metadata on The Great Suspender hasn't been updated (to my understanding) so the Chrome Web Store doesn't even know that the owner has been changed.</nope>

Actually it does appear that the owner was changed from "deanoemcke" to "thegreatsuspender" (the new mystery owner) on the Chrome Web Store page.

I agree that warning when updating an extension if the stated owner has changed would be valuable.