Very cool of you. Some of the guys try to force feed the bbbj into GFE to make it only defined one way, when the actual thing about GFE is that it is more than straight up traditional FS only, not that it must have bbbj. Not that long ago, sps did not provide (normally) anything like kissing, or bjs with FS sessions, and no daty, etc etc. There have been alot of changes, by trying to force the bbbj "or else" GFE cannot be used is a popular one, and totally beside the point.
If someone is looking for (or to advertise) more risky activities with less restrictions there is a perfectly good PSE term that they can use. That is a great one to show that they are providing bbbjs, DT, CIM (or similar), and greek is available. Trying to pigeon hole all those things into the GFE term is ridiculous, since why have two different terms if the two things are so similar?
Not too many gfs require covered sex either, so if a GFE sp does a cbj along with that cfs, are you really serious that that is a good argument?
GFE simply means the sp provides more than FS in the session, then it is up to her what that includes but it definitely has to include more than FS or she shouldn't be using. It falls COMPLETELY on the client to ensure what he is looking for is included. And it is COMPLETELY his responsibility if his hygiene fails to meet minimum Health Dept requirements in such a way that the sp is forced to deny him that particular service for fear of picking up something nasty, or gagging before the DT happens.