Nothing new in the series as the feeling seems to be instilled in the writers that emotional disturbances or crises, are required to be solved with no real solution, just sort of a he/she will just buck up because it's a convenient time saving means of ending the conflict, and besides no one really wants to see a character going through the actual tedious hard work that's required to recover from a traumatic experience. See Extreme Risk and Mortal Coil, amongst others, that balance off the occasional Latent Image.
Lynx, I'm not sure I know what to say. I honestly thought your first two posts on this were meant as jokes, elaborate and unfunny ones at that. But you are actually in earnest. I know there have been threads about Locarno and Paris, but is there really any question that needs to be focused on defining the character's in-universe connection?. My understanding is that they are different because of the compensation issue that would've become involved with the writer(s) that dealt with Locarno. they're not the same people in canon, so what's the point of all these mental gymnastics? Aside from anything else, Ichabod? Really? OK, maybe there's a in-universe reason to reconcile their identities that I'm simply unaware of as part of the gaps in my Trek knowledge, but otherwise, I'll readily admit I just don't get this construction of yours.