Shouldn't vc-dir show only files under VC by default?

[ndame]

When I start vc-dir I usually have to wade through a bunch of unregistered
files (temporary scripts, etc.). I know I can hide them from view with
x, I'm just wondering about the design decision of showing them by
default.

In my experience one works most of the time with files under VC and
occasionally adds news files. It is much more often that one wants to
see VC-controlled files than unregistered files.

If this is the case then shouldn't vc-dir work vica versa, that is
showing only files under VC by default and having a key to show
unregistered files if the user wants to see them?