A extended question on multiple SAML entries...
Given a scenario the identities are not abstracted by a single IDP as federation and each identities /IDP are independent across region?
Are there any patch to support multiple IDP certificates assuming SAML IDP per factory configuration?
Is there a limitation on the saml certificates configuration might be limited to 1 IDP restricted to /etc/key/saml/ nodes without further configuration per factory
https://docs.adobe.com/docs/en/aem/6-1/administer/security/saml-2-0-authenticationhandler.html