There is a strategy for battoning with a small knife that could be applied to folder (crack the top of the wood by light batoning with knife, insert an improvised wooden wedge and batton it through the wood - I hope you understand, my English is not best :)). However it´s far from quick or straightforward.
If I lost a fixed b. I would surely call up the folder and try to improvise.

I think everyone here agrees on folder being a compromise. I was just surprised to see absence of FB in Jim´s hiking/survival kit. Without it the kit seemed incomplete, but since there are places where folder is not worth the trouble associated with carrying it, I understand. In that case I would add some kindling to the kit (one Maya stick or more for example) so one will not have to split (a lot of) wood if it ever comes to it. Jim mentioned rain and rain means wet wood.