Sure it can be done. Take out the post you build a doorway like on an Ariel. Doesn't really make practical sense unless your interior needed a gut job.
I do remember seeing one type of boat that had a beam across the ceiling and two round wooden posts coming down on either side of the cabin sole. Looked pretty good. A project like that wouldn't require as much surgery.
Actually I find the compression post to be handy on a rough day down below. I have thought about making the post "prettier." I wonder if you could wrap the post in teak veneer, make it look like a wooden post. Not sure if the veneer would hold up. They also sell plywood cylinder tubes with nice surface veneers. Cut it in half lengthwise and wrap the metal tube with it.
The feeling eventually passes.....