(bolded for emphasis): Theatre of the mind *are* true RPGs. They are not tactical simulations, true, but they are about the acting and immersion into your character. Stats exist to provide guidelines, but it is becoming the character that is the heart of an RPG. It is the telling of stories, the evoking of imagery that the true skill of a good GM. I have been playing and GMing RPGs for 25 years, and I have always done "Theatre of the mind," though we didn't call it that back in the day(the term didn't really exist until, what, a decade or so ago?). We called it, wait for it, "Role Playing" and "Story driven."
I like how you omitted the "table top" part of the commit to make your point.
I have been roleplaying for well over 30+ years (not going to give actual age) so using this as an I know better statement is not going to work with me, thats why I don't use it.
Their is a major difference between playing a role and playing a role playing game.
One is just called acting and the other is playing a game.
While "Theatre of the mind" may have been a bad choice of words, The reason why I don't think Destiny qualifies as a true "table top" RPG is that the focus is not on the characters but on telling the story.
In a true table top RPG, the focus in on the character and how the player decided to interact with the GM/NPCs and the other players.
In Destiny, the focus in on narrating a story with the characters just as pawns within the narrative.
For this to work you need every member of the group to have little to no interest in advancing their characters with the total groups interest overriding personal goals.
Destiny comes off as a chain campfire story with little to nothing in the way of structure.
I have played game of this sort multiple times in my life including other game in the Cue system line and they never end well.
even if you use the optional GM controlled version you just move to AToW light, with little in the way of substance and a extremely watered down character.
This is the same issues that sunk or is sinking games like Dragonlance Fifth Age, and to a lesser extent Shadowrun 6th world.
This is the issues with Destiny.