I've spun up a new lpar. Started fresh at 7.1. No 'traditional' ap's.
All Domino. Therefore I'd have no need to tinker with that object. I did
a WRKOBJ OBJ(*ALL/QAQQINI) as someone with *ALLOBJ authority.
Object Type Library Attribute Text
QAQQINI *FILE QSYS PF QUERY OPTIONS FILE
QAQQINI *FILE ROUTINES PF QUERY OPTIONS FILE
We restore the ROUTINES library on all lpars.
In summary, apparently one in QUSRSYS is not a default. At least not
currently. Whether you need/want one there is another matter.
Question everything. Don't be like my sister who used to forward on
emails: "delete command.com from your PC if you have it because it is a
virus" or some such thing.