FastCGI and NoAuth

In William Harrison’s HOWTO, and also at the wiki’s ApacheConfig page,
this line is recommended for FastCGI installs:
Alias /NoAuth/images/ /opt/rt3/share/html/NoAuth/images/

However, this results in not being able to see /NoAuth/webrt.css (and
whatever else might be hanging out in the NoAuth dir).

Any reason why we shouldn’t just say:
Alias /NoAuth/ /opt/rt3/share/html/NoAuth/