I am listing this as a feature request but if this is not intended behavior then I guess it's a bug. I downloaded the plugin from the obsidian store so I don't know if that's out of date compared to github (looking at how you've crossed out downloading from the store).
Essentially, what's happening is that only the block blurring effect is shown in edit mode. I had hoped that this behavior would also work for the other annotations (all three inline and the box and bone block redactions).
It looks like this in edit mode in the attached image:

Is there a way to make the effects show in edit mode unless your cursor is on top of it? I know other plugins do this with their presentation changes to edit mode, but I wasn't sure if there was a technical reason it behaves this way.
Please let me know if you need any other information.