Why are so many providers refusing to kiss or to give head?  Even a lot of the ones that will “agree to” giving covered BJ have no enthusiasm or maybe it’s lack of skill.  

Almost every provider I have seen gives BBBJ, and most do it well. You need to up your selection game.

On rare occasions I've come across an escort reluctant to kiss, I cannot think of any time that  BBBJ was not available, though here people talk about providers (and have seen some ads too) saying CBJ was all that was available. How well it's done varies but its actually very rare that they just don't even seem to be trying.

Judging by your reviews, it appears that you are not active, but of course many guys are and no longer review or rarely do so. My point is, if you are basing the numbers on just a handful of women, then your sample set is way too small.  
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Virtually all FS, TER type providers kiss (to some degree, be it lip only, LFK, DFK, etc) and the vast majority provide BBBJ. If you look at profile after profile here, for FS providers now, you will see what I am saying is true so I dont know where you are getting this info to come to the conclusion you did.

You picking the wrong providers. Why not share a link to their ads, so we know who is not providing?  

GFE by long tradition includes not just those two, but also CFS, DATY, and MSOG.  
I wish the tradition were stronger on including Friend Experience, but it's too late now to change it.  

I haven't seen a lot of new ladies in the last couple of years, but I can think of maybe 1 who didn't do DFK, and 0 who declined BBBJ.

than it has to be.  A provider's TER profile tells you what is on the menu when you seem.  A VIP membership is a few hundred dollars a year.  If you don't have it, get and you will know what they do and don't do.  You have only two reviews in the past ten years, and one says they don't kiss with tongue and other one says CBJ.   If you go cheap on your membership and skip the VIP upgrade, you forfeit your right to complain about the details you COULD have learned with a VIP membership.  Get a VIP or stop your whining.  The information is there, but it's not free.