I don't really know what all the fuss is about. I mean if that's a penis, someone wasn't doing their job right because the shaft is connected to only one ball. It's kind of like if I put an ice cream cone upside down on my head like a unicorn with another ball dangling from my neck.
It's not un-fuckable - but it's sure not your standard penis to ball layout.
At the same time the Enterprise was kind of a big phallus anyway, always getting worked up, going into warp speed, sometimes shooting off its phasers for no good reason, and always trying to "explore" "new worlds". I mean even if the K State Marching band wasn't making an actual penis (which they do deny), maybe it's not that out of the question that some people saw one?