If I remember correctly the 6 grams per kg were for 5 hour easy ride days.
I hear a lot of people on the forum talking about doing those on water only. So there’s a disconnect.
I think it’s confusing because what they say and what they show via pictures and meal plans is different.
You see Chris Froome eat an egg and salmon breakfast on a rest day and you think he’s going no carbs.
I also wonder if the conflicting information is on purpose. I wouldn’t put it past sky/Ineos to say they are doing one thing and then do another to get an advantage over their competitors.
So we really might have no idea what they do 
.