What did I miss? Is it worth looking into writing a SCPI driver or is the lack of SCPI driver indicating some problem?
No problem there at all and in fact, we do at least have one multimeter driver that uses SCPI:
https://sigrok.org/wiki/HP_3457Ahttps://sigrok.org/gitweb/?p=libsigrok.git;a=tree;f=src/hardware/hp-3457aYou could certainly use that as a foundation if you do want to write a driver for your fluke
Sadly their 'forum' is google hangout and it was atrocious so I never looked at it much further for information.
Hmm, google hangout? Do you mean google+ by chance?
Our main means of communication is IRC and for anything forum-like we have the mailing list and google+ (all linked to at the bottom of sigrok.org). The thing about sigrok is that we have a lot more users asking for support than we have devs who can give it. We're fully aware that one of the reasons for this is that the docs need improvement, so I'll work on PV docs soon. However, it's still going to be an uphill battle, so in the meanwhile I can recommend hopping on IRC for the best way of getting help