I agree that it doesn't matter, but I'd push back on there not being consistency. Movies and TV shows almost always have script supervisors whose job is to pay attention to this kind of detail. They aren't 100% perfect at what they do, but they have the kind of job that when it is done well goes unnoticed.
In any case, they were fighting an enemy with a single point of failure. Throwing away your entire army with stupid tactics is entirely consistent with the plan to bait out the Night King. ?