Hi Diego,
We raised an OSS message to SAP to confirm about this. We came across lot of issues for EAM to TM system.
1. Login Issue
2. Logs capturing (Webdynpro logs are not capturing any changes)
3. BRF+ logs. In our project users login with FF ID and make changes to decision table entries in BRF+ applications and none of those being captured in FF logs or even in trace.
We mentioned all these in our OSS message. Will update you with their reply. But it looks like TM is not supported in many aspects of GRC 
Regards,
Sai.