At the copyright owner, they are within their rights to release the source code under the AGPL, and also sell it under other licenses. Anyone is free to use the code under the AGPL. Nobody who releases code under an open-source license is obligated to provide binaries.
As the copyright owner, they are free to use the code along with other non-open-source code (e.g.: SSO integrations) to build a non-free product.
IANAL. I originally interpreted the license.txt as: all of the source code is AGPL (see lines 234-235), some of the source is also Apache 2.0, and the binaries are MIT; plus a trademark notice and contact info for getting a commercial license. After rereading it, my only conclusion is that this is a dumpster fire of a license.txt, and can be reasonably read several different ways.