It's Mike's and CDPR's game. They designed it, they created it, they get to decide what makes it more immersive. You don't get to decide, especially when they've seen the gameplay and you haven't. So yes, they do get to say that third person is not as immersive because that is the conclusion they came to while designing this particular game. Sure it's their opinion, but this is their vision, not yours.It's amazing how many people cannot comprehend that you cannot define other people's experiences for them.
This is literally like me saying "I find the color red more jarring than blue," and someone responding "No, you find blue more jarring."
If having a third person perspesctive is more immersive for me than first person you dont get to say "No, it isnt."
It is for me.
And that's why I find the whole immersion justification so bizarre.