Yup, technically it looks like you can only use that "for the sole purposes of internal development and internal testing, and only in a non-production environme

Yup, technically it looks like you can only use that "for the sole purposes of internal development and internal testing, and only in a non-production environment". Basically, they clearly don't police individual users self-hosting, but they maintain the right to knock on the door of companies. Redistribution is also not allowed.