Here's an example of Greenpeace blocking a russian liquid natural gas tanker from reaching port in Finland from September of last year, and here's an example of Greenpeace activists boarding a container ship containing paper to protest deforestation from November of last year, here's another example of the same group boarding a heavy lift vessel to protest offshore oil drilling from January of this year, and here's an example of some scamps vandalizing a wal-mart heiress's yacht from earlier this month.
You're absolutely right, that activists boarding ships or otherwise vandalizing them gets way less press and markedly less discussion than this protest has. Why do you think that is?
Yeah, it probably sounds cynical, but I agree with you there. When there are successful actions that make powerful people uncomfortable, those power people successfully repress news coverage of those actions.