Doesn't handle pipes

It looks like fuck doesn't handle pipes well. If I try to do this in Bash:

$ pss -ef | grep foo
-bash: pss: command not found
$ fuck
ps -ef | grep foo
ps: illegal argument: |
usage: ps [-AaCcEefhjlMmrSTvwXx] [-O fmt | -o fmt] [-G gid[,gid...]]
          [-g grp[,grp...]] [-u [uid,uid...]]
          [-p pid[,pid...]] [-t tty[,tty...]] [-U user[,user...]]
       ps [-L]

It looks like the command is executed in the wrong way, it seems like it's trying to execute it as a single command, instead of treating it as a line of input with potentially multiple commands.