Looks like a certain amount of BS to me...When I was in, it wasn't any big deal if you were an NCO and your squeeze wasn't.....But fraternization between officers and the hoi polloy was different.
Well, in the Navy, if you were an E-6 or below, you could generally get away with dating someone who was of a lesser rank. Matter of fact, was stationed with a dude in Millington TN who was an E5, who started dating an E3, and eventually they got married. Nobody said much about that, because they were both enlisted.
However.......................Chiefs and Officers (the khaki crowd), were strictly forbidden from having anything to do with the enlisted when it came to intimate relationships.
Sucked too. I remember being stationed in Newport RI back in the early to mid 90's, and became a member of a dating group. If you saw someone's ad that interested you, you called and left a message in their mailbox, and if they were interested, they called you back and you talked, leading up to dating. Well, I saw an ad that looked promising, and I called. She answered back, and we spent about 2 hours talking on the phone because we had so much in common. I finally got around to asking her what she did for a living, and she said she was a JAG officer on the base, and she was a LT. Well, right there I knew it wasn't allowed when she said she was an officer. I explained to her that I couldn't date her because I was an enlisted person. She said she understood, and we ended it then. A couple of days later, she came by PSD just to see who I was, and man.................I was bummed out again, because she was very good looking.