That's what they tell me. I honestly didn't feel like it mattered, my mom and I are ISTJ for instance and we get along/work with a pool of such random EN* it feels like you pull these letters out of a bag.
Guess it depends what tests you run. And it's not really about the specific result. Once they have the result, they talk over it with you, using that as a template to identify and understand behaviors/motivations in your coworkers. It's a dialogue, not just a test score.