Hello Nicholas,
It’s done and I have updated the addon on your server.
You can now select the post type while deleting posts by title.
Since there are lot of posts in your server (greater than 200,000) don’t try to delete all the posts that match the title at once. Instead try to delete them in batches.
Once again thanks for giving access to your server for me to debug the issue and also my apologies for the delay.
Let me know if you have any more questions regarding it.