It's a cynical attempt to make Spock more normal, less weird and less possibly homosexual. Though this poll shows I'm in the minority as most in this section profess to "LOVE" their flirtatious banter
I haven't commented on this thread in ages, However I doubt your comments are true. spock was never weird, homosexual, or not normal. Spock did have romantic encounters in TOS. Spock was also never weird he just lived by cold logic and spock was also normal...at least normal enough for humans to understand and poke fun off.
I believe that is why uhura made fun of his ears in that song or why bones calls him a hobgoblin.