Something very like that! I just successfully tested exactly that on my staging site.
I was thinking about the delay option for the posts:rebake_match but probably it doesn’t matter.
It is of course insisting on re-processing all the images on the affected posts, which is unnecessary, so an automated fix just for this might reasonably avoid that, but in the meantime there is a way forward.
I might want to do this by reverse ordering and adding a delay if a site has a lot of affected posts.