I agree that using a unix socket is better than using a tcp socket and
can support updating the ordering.
I also see no reason not to update the example to point at the newer
PHP socket location.
However, that other line is an example of connecting to a TCP socket
and I do not feel that it should be removed. I see (with painful
frequency) users uncommenting that line in order to use apache to
serve php (or worse). As much as I'd prefer people deploy more
robust/sane setups, I really don't want to field all of the extra
questions because the line went missing.