I honestly thought is was just a moment leading to something more. But suddenly it became another thing to point fingers about until there was an apology. I didn't see a scene with someone posing for me, I saw pre-planning. I might be wrong, and I'll never know if I am or not because I doubt Orci & Co will feel the need to tell anyone

But....
Kirk was shown to be immature and those around him enabled that by falling for his shit. Marcus was, as everyone here knows, the future Prime universe love interest of Kirk at some stage. So it stood to reason this was to be the roots of - or at the every least, a hint of - that romantic relationship.
He couldn't resist the immature nonsense in that moment (which as said, made sense in context - you can't stick a jumpsuit over a dress!) and instead of falling for his 'charms', Marcus pretty much told him to piss off and so begins the adventure of becoming a better person to prove his worth, just like a billion romantic comedies since the dawn of time.
What I saw was the first step of a larger story. Not a very well constructed one, and leading to no more than the usual average nonsense. But it made sense. It's a quick way to begin that relationship, to give Kirk an emotive reason to evolve into a better person and better captain - much like the matured Kirk we see in Beyond.
.....until someone hit the panic button. Then it became something to apologise for and freak out over. And alas, what could have been a very mediocre subplot turned into Alice Eve being taking off the priority casting list and Carol never being seen again.
The scene itself wasn't anything special. Nor was it something to panic over. It was a minor point to what felt like the beginnings of a minor plot that was overshadowed by negativity.