Multi-Site not deleting all tables when site is deleted.

Hello!
Perhaps someone can point me in the right direction.
I’m using gravity forms with the user registration plugin to create sites on user registration on my multisite. I then use wp-replicator to copy contents to that blog. It works fantastic.

When I delete a blog from the MultiSite network panel, it works fine, no issues. But looking in the database I see that it deleted all of the tables for that site EXCEPT for the gravity form tables…odd since it seems like the blog delete function just grabs the tables with the proper blog id prefix…though I suppose I’m wrong.

Any ideas? Not a huge issue but I’d like to keep the database clean without having to go in and manually remove the tables everytime.

Thanks!