SMF/ICSF - Increase input validation for SMF record signing

Defining a TOKENNAME for either RECSIGN or ARECSIGN in the SMFPRMxx member is only validated to be exactly 32-characters long. However, one can activate the member with SET SMF=00 without throwing an error (even there is no associated private/public key to the token).
One only notices this issue during the validation as the validation process fails with:
IFA744I SMF SIGNATURE VALIDATION FAILURE DIAGNOSTIC INFORMATION
       RECORD IN ERROR                                        
       <header>       
       TOKENNAME <your.32.character.token.name>          
       HASH SHA512 SERVICE NAME CSFPOWH                       
       RC=00000008 RSN=00000BD2                               
IFA742I SMF SIGNATURE VALIDATION FAILED DUE TO                 
       CRYPTOGRAPHY FAILURE - ICSF RC/RSN=00000008/00000BD2   
       
Which means according to the manual (https://www.ibm.com/docs/en/zos/3.1.0?topic=codes-reason-return-code-8-8):
"The z/OS PKCS #11 token or object handle syntax is invalid."

Which is true as the token has not assigned the proper keys.

This Idea asks for an 'input validation' not only for the token name (length) but also if the token is usable.
The benefit of such a validation is that an error can be prevented:

One shall not be able to activate an SMFPRMxx member where a token is defined for either RECSIGN or ARECSIGN without assigned private/public key to prevent a failure as described above.