https://www.offshorewind.biz/2020/09/21/rystad-energy-less-i...
It shouldn't be a deal breaker, but doing the same on oceanic water will have it's own challenges with significantly higher wind variance and more flotsam dangers
A region of:
- no freezing water, no icebergs
- few, low intensity storms
- shallow seas (often less than 100 m)
- surrounded by wealthy nations with large population centres
The argument does not hold and does not transfer well.
It's coming down. Though massive supply shortages and failure of a bunch of companies to hedge against commodity prices needed to fulfil budgets are going to be pretty rough for anyone who isn't China for a few years. Note how much more Japan's renewables cost than world median. The reasons aren't just policy -- Japan has ben dealt a uniquely terrible hand for renewables matched maybe by Slovak Republic (which at least has close allies to trade with).