Builder and unfiltered_html capability

Hi,
I’m using a WP Multisite. For WP Multisite only the super-admin has unfiltered_html capability.
But…if I give someone with the role “editor” (that has their own sub-site) access to the BB modules, then within the BB text editor they have unfiltered_html capability…which I definitely DON’T want them to have!

Any suggestions?

Thank you!