I think part of the confusion here is that edits move on hold questions into the reopen queue (with limitations). One thing to remember, though, is that there's no way for the system to correlate the reopen vote with the edit.
- It's possible for someone with sufficient reputation to nominate the question for reopening without it ever being edited at all.
- Bad or purely textual edits also move the question into the reopen queue where it may garner reopen votes despite those bad edits.
- Someone may vote to reopen after an edit pushes the question into the reopen queue but still thinks the original question is fine.
The system can not (and likely should not) be making these determinations automatically.
Now, should an edit generally or a rollback specifically trigger a notification to the reopen voters to ask them to revisit their vote because the question was edited? Maybe. This could be a good feature on both sides of the close/reopen process and I'm pretty sure someone has requested it here. But the system shouldn't interpret the votes itself.