Dia Dhuit,

Actually they seem pretty accurate. When I was at university (UCD) we studied those stories quite extensively in my Irish folklore class. What always stands out to me is how blunt and to the point they were. Not a lot of subtley there. Our professor said that much early literature of humanity was like that. Juvenile, insomuch that it was like two young boys recounting a story. Plenty of detail and description concerning fighting but only passing detail about much else.