According to upstream main page (https://joeyh.name/code/moreutils/), the following binaries/scripts are missing in what current ebuild installs: chronic: runs a command quietly unless it fails combine: combine the lines in two files using boolean operations ts: timestamp standard input vidir: edit a directory in your text editor vipe: insert a text editor into a pipe zrun: automatically uncompress arguments to command I can confirm they are in the tgz, and (aha), the gentoo package installs the man pages for those.
Use the perl USE flag to install perl-based scripts.
Oops ! Indeed, sorry for the noise.