Are timed/points trials considered a "full National style course"?
Always been told yes, so long as there is a outrun/lift or gather and drive legs. The fetch is sometimes in question, seen trials where the dog lifts and then cross drives them before the stock comes to the handler, but that would also be in line with a double lift, which could be considered as two cross drives then a fetch from the center of the field.
That was why I pointed out the course description that was approved by the USBCHA BOD, even it would allow for arena trials, so long as they are set up in a triangle format with drive legs.
I don't see anything that clearly excludes arena or point/time trials from being counted as Finals qualifiers. IMO, it is left up to the individual handler to determine if their dog can do the work before taking up the National Finals adventure