At most, I think this should be an option. Real time with pause is one of the things I hate the most about original games, I was so happy when it turned out this was going to be turned based. I don't care if real-time-with-pause is something you can turn on in options, but forcing me to use it is going to ruin a lot of the fun I've been having.
It really is a "what you like" sort of thing. I keep saying that the only reason this is even a topic is the name of the game, and people viewing Baldur's Gate as a genre of games, not a game franchise.
It's not uncommon for franchises to change genres after decades of no development. Fallout is a good example.
But here's the problem
Anyone who bought the game BECAUSE it's turn based would have been cheated if it was taken away.
Anyone who bough it knowing it was turn based, but hoping they can convince Larian to change their mind, at least made a conscious choice.
I wouldn't mind if they put "real time with pause" as an option, I would never ever play that way. What I would mind though is if they took time out of development to implement it. Time they could spend on making the actual game they have planned better.
What I would rather see happening was them bringing back the "one side goes, then the other" that they originally showcased. As well as implement the enemy actually acting at the same time, with faster AI.
Currently I find most of the "not exciting" parts is watching the enemy "plan their next move" while doing nothing, and watching the enemy run.
This could be sped up by moving at the same time, and also adding a "2x speed" option between turns.