When you work hard to buy nice property and a huge boat lands there with pretty much no possibility of leaving in one piece
4' of water with and 8' draft boat will see how well you take it
I agree with you, without a major major expense this boat will not move. The article says the man is waiting for a high pressure system to raise the water- He should want a low pressure system. I used to live a mile where the boat is, normal tides are only a couple feet. Spring tides maybe up to 4 to five feet. This guy needs a northeaster for several days or a hurricane to get the water level where he needs it, and then once he has the boat to the open bay, he could be dealing with 8 foot seas with 50 knot winds.
I wish him luck.