It can't hurt.
I've never heard of anything like this, but then again stuff varies from command to command, plus I haven't been a new spouse in over 7 years, so I don't know what all they might put on it. I could see how some of the stuff might be very helpful, it might answer some simple questions (like ranks, etc.) and some more complicated ones (like services available to you, tricare concerns, etc.). And even if it's boring and not very helpful you might still find one or two little tidbits that you now don't have to go search out on your own. Honestly, I'd watch it, it's not going to hurt you any to waste a few minutes of your time.