The Dutch don't really care about his boat, but they care about a bridge. This bridge, "De Hef", is a symbol of Rotterdam. People are proud of it. Several years ago it was temporarily dismantled and almost permanently removed because it is no longer used. But the people of Rotterdam were pissed and fought to turn it into a monument, which they did. The officials made a promise to never touch the bridge again, except for maintainance. And now some billionaire comes along who wants dismantle the bridge because immense superyacht can't fit underneath. That's why people care
I doubt Jeff was personally involved in the planning. He might have just about been involved in choosing the ship yard based on examples of their previous boats. Beyond that I doubt he'd have too much involvement. Even the snag list will be left in the hands of the captain he employees to manage the boat on a day to day basis.
Might be, but it's just a terribly bad look, especially when you offset it against news reports of working conditions at Amazon. Or more local, the young Dutch people not being able to buy any house in the current market. It is not related, but just rubs people in a very wrong way.
I get it. It's utterly insane that some people are allowed to accumulate such wealth. That said, I think the only one you can really hold Jeff Bezos to account for is working conditions at Amazon.