It’s “opt in” to view the images. I can see them on my Bluesky timeline. Agree with your principle but IMO this is the same mechanic as a Nostr client hiding posts tagged as NSFW by someone your WoT.
Discussion
Except all Bluesky users are dumb enough to have Bluesky staff in WoT
On the other hand, I feel like I'm oversimplifying when I say "except" and then cite such a simple difference