Another good old True/False topic~. And today's quote comes from a writing advice video I skimmed a few weeks ago, about crafting better dialogue.
I think the point they were trying to make was against the rise of 'therapy speak' in novels...which IS incredibly annoying and immersion-breaking, I must admit. ^^; Someone who's trying to apologize probably isn't going to say "I lashed out at you because I felt inferior to you, and I wanted to bring you down to the level of pain that I felt..."
They're probably just gonna say "I was just stressed out and I said some stuff that was outta line; I'm sorry."
And my 'bad' example ^there wasn't even therapy speak, per se. I think that is something a person could say in a casual conversation...but they wouldn't lead with it. A statement like that might come out a piece at a time, deep into a conversation, after they've had some time to express the more immediate ideas around that concept and consolidate their thoughts.
But, before I go any further into what I think, let's take a vote:
Oddly enough, my answer is gonna be False. ^^
I'm sure a lot of other people are going to agree, because they were already agreeing in the comments under the video...but my reasons for my viewpoint are a bit different, I think.
So one argument I saw a lot was how this applies to characters (or writers, even) with autism. In general, people who just aren't as tuned in to the usual social graces and conventions that make it 'unacceptable' to say exactly what you mean in certain situations.
Some people got a little...heated about this (I understand how difficult it is to grow up neurodivergent...but at the same time, I don't think it's appropriate to imply that neurotypical people are all shady deceptive demons who want to torture you with mind games. You're not helping anyone with that kinda talk) but I get the point they were trying to make. Having characters dance around every single thought they try to express is equally annoying and immersion-breaking as having them be overly straightforward. If you've ever read a particularly poorly-written romance, you already know this. ^^;
However, my argument lies somewhere in the middle: I think it's not that your characters should never say exactly what they mean, it's that they should never say anything they're uncomfortable with, unless someone makes a proportional effort to bring it out of them.
Sometimes, 'exactly what they mean' fits into that realm: for instance, with characters who are secretive, and afraid of letting people learn too much about their true thoughts and feelings.
And then with characters who are very straightforward people and often say exactly what they mean, this can be a wide variety of other things: Issues in their world that they're unwilling to examine or don't understand; conflict within other people that they don't fully understand. Problems that they want to solve alone, that they don't want others involved in, despite how much they care about them. Or perhaps, because of how much they care about them~.
Even a straighforward person might say "this is none of your business; stay out of it" rather than "it would be really painful and traumatic for me to discuss this with you; I just can't handle that stress right now"...if they're simply uncomfortable enough. ^^
Discomfort is the psyche's first line of defense for protecting itself; I feel it transcends social barriers. At its most intense, it will put up walls for you whether you want them or not-- that's why I rely on it as the 'line in the sand' for crafting believable dialogue, and to my knowledge it hasn't failed me yet.