I'm confused. I don't see an MSxx grading for Kialara. Are they not actually giving them a grade? Or am I missing something?
Based on the items above, they're being graded as "Genuine (80)" (PCGS tacks on the grade code to the end of the population).
You can verify this by looking up the certificate, for example
https://www.pcgs.com/cert/49423411 for a Kialara.
That does seem to imply they're unwilling to grade them for value, but will still slab them and do a cursory authentication check.