I don't disagree. Almost all of the defense of Winterfell was stupid, tactically.
This is the biggest problem with the show relative to the books. The books, IMO, are about as realistic a depiction of how people would act that a single author (with one person's knowledge and capacity for research) could probably produce. The show adjusts things for better visual effect.
An example is the Night King's end--he didn't have to advance slowly himself to kill Bran. He could have let his undead minions kill Bran. He could have killed him from the air with dragonfire. But the slow advance, with the music and the cuts to all the other desperation happening concurrently, made for a better visual framing, in addition to putting him in reach of Arya for the ending they wanted.