Selling stock photos made sense for photographers 10-20 years ago, not worth it anymore unless you're at the very top.
For the reference: https://www.shutterstock.com/g/MateoSan
It's just that there are too many photos and photographers out there these days. All pro photographers I've met were struggling to make a living off of it.
It's a bit annoying because that one photo is a generic image of a cargo ship. The rest are technically and aesthetically more interesting landscape and nature images. They just don't have the same commercial value as something that someone conveys a general and frequently applicable concept like "shipping".
But with people uploading their images free for others to use, many aren’t bothering with packaging images anymore.