MKBHD mentioned the same use case in his video and how he would pay good money to NBA for it. And he used the headset for a good 30 minutes. Maybe it's a valid use case? Have you personally tried the headset to flat out dismiss it?
These journalists who get this launch-day experience were selected for their history of writing nice things about Apple. They're being shown the device in ideal conditions under the watchful eye of Apple's world-leading PR team, and they've been primed for years to expect something amazing from the Next Big Apple Product. There isn't a tremendous amount of objectivity in these circumstances.