Yeah, it's kind of wild to see the general reaction to this being "the developer is being unreasonable".
It's like... I, too, find it burdensome for a review that claims to be "manual" to suddenly flag a file my code has been utilizing for years, and puts the onus on me to refute it's findings. Not only is it trying to prove a negative, it's ridiculous that an unchanged file needs re-review for things like "is it minified?".
As far as I can see, there are errors here and they are ALL on Mozilla's side. Better training, maybe, but probably just stop lying that a manual review has happened when it hasn't. And then, when you have whatever semi-automated review is being done flag a thing, then actually have a human review it. And, since that would be a firehose, implement simple standards to filter out spam and publish those standards - and what effect each infraction will have on the review process, including steps for remedy. Make them able to be completed as automatically as possible for the developers, so that you don't have to manually review, again. If it's a minification issue, require the devs to re-upload non-minified versions, check it automatically, and then allow the publish.
I'm being simplistic and flip, but a reasonable generalization is just that bureaucracy should be imposed on the implementers of the bureaucracy, not the people who are trying to engage with it.
> After re-reviewing your extension, we have determined that the previous decision was incorrect and based on that determination, we have restored your add-on.