All that means is the management has the user's public key, which is expected.
Without the private key, which is generated and stored only on the client itself, it is not useful to provide an export.
Storing these private certificates centrally presents an unnecessary security risk.
Even in cases where we have to manage a private key (e.g. Site-to-Site VPNs authenticated with certificates), a new certificate can easily be generated as needed.
To maintain security, when a new certificate is generated, the old one is marked as revoked in the CRL.
As such, we do not permit export of certificates after the initial generation.