So there are multiple things said in this twitter discussion:

• that the package lags behind, it might have been true, but we packaged a new release on May 31th so we are good now

• that it doesn't work headless with selenium, that's correct but that has always been the case and it's not really something we can do anything about

• that the package doesn't install dependencies, that's wrong, however it's true that selenium has been broken with firefox-driver, hence when we updated eyewitness we bundled gecko-driver (another driver for selenium that is recommended by the upstream developer)

Now with all that being said, I'm not sure what we can really do better now and the current package should work.

The fact that you need an environment variable with phantomjs to work in headless mode is also true AFAIK. We already added this environment variable in arachni for the same reason. We're going to add it in the eyewitness helper script too.

Anything else that we should do better ?

We just noticed that "eyewitness --headless" was broken in our last update, the path tested for phantomjs was not the one in use by the Debian package. We will fix this too.

New version 2.2.2-0kali2 fixes the "eyewitness --headless"

It now works, but there is a pip3 requirement missing. Can't remember which one from this morning. Run the tool and it's stated above the head banner.

I retested the version 2.2.2-0kali2 and I didn't see any mention of a missing requirement.
Please open a bug if you get again the issue.