The problem with SRFI 97 is that you need either just a number (which is standard in R7RS) or a number plus a mnemonic but not predictable name, but if the SRFI exports multiple libraries, you have to call them (srfi <number> <srfi-name> <library-hame>); you can't omit the supposedly optional <srfi-name>.
Of course if we had keywords in library names ....
