Now that’s been cleared up. On to the crux of your posts: that SOLAS lifeboats should be used as rescue craft.
As some, including me, have said here the idea has merit if conditions permit. It’s been done before. The operative part is “if conditions permit.”
The person who gets to decide if conditions permit is the captain of the rescue vessel. No one else. If that captain decides against it then that’s it.
The picture of the KJ shows the SOLAS boat would be recovered under the stern tumblehome. For several reasons that’s a dangerous place owing mostly to the fact that the boat tends to slip under the deck plates where it can be crushed under the strakes if the ship rolls or the seas smash it in there.
Given that the davit is a typical gravity davit it’s reach is just a few feet outboard. Given that there are seas the ship would either be rolling in them if the ship were dead-in-the-water or the boat would certainly be drawn under the tumblehome if the ship were making way.
As you were in a PFD your life wasn’t in immediate risk. You survived in the water for a few hours so the water itself wasn’t an immediate danger. You were certainly scared and uncomfortable but not at death’s door.
Given these conditions as I understand them the choice I would have made would not be to launch the SOLAS lifeboat.