Ironically, despite the 'paleo' umbrella of the site, and the particular hard line stances, distortions, and dismissial of anything 'neoloithic' [particularly raw dairy] and supicious of 'detox', there remains a overwhelming 'faction' of 'minority' raw dairy consumers on this site. To my knowledge, and by a simple head count, I would even go as far as to say that the very few who on this site who have indeed done primal diet for an extensive period (in comparrison to the long term primals who probably would not be all that active or on this site), either are still more or less on it, respect parts of it, or even admit to through a variety of positive or negative experinces (availability etc...) seem to still consume some dairy products or do other primal practices (juices etc..)
as far as I am concerned, there has never been much of suggestion by AV or others that there is an adverison to dairy that cannot be overcome in time. At the same time one doesn't have to be a 'AV apologist' to realize that not all 'raw dairy' is created equally and this to my knowledge is also a huge part of actually 'following' the diet. IMO raw butter is basically an entire different species of food than milk or cheese, fermented or not. Cheese especially not being even considered a 'food' by aajonus himself. Any old diet of milk and cheese with an otherwise liberal assortment of meats and plant foods would not be consider to be a healthy diet.
These are my observations anyway.
In my expeirience, basically exluding something like raw butter from ones diet means ultimately making choices between a diet high in carbs and/or a diet high in protein, OR a diet that containsa majority of pure dense animal fats or rendered fats. I tend to include quite large quanitites of raw marrow in my diet, but its impossible for me make this work as my only fat nor would I want to. I will eat suet and regularly eat fattier meats/cuts like brisket but I'll choose raw never-frozen butter over suet any day of the week. I can't speak towards long term (5-10 year) deficiencies or other such things, but if it came down to it I would suplement for this issue rather than manufacture some more 'natural' diet that would be less healthful for me in terms of the present and the reversal of health issues of the past.