If the color of the lighting is the same in these situations then the
profile should be valid.  The light-modifiers may have a slight cast, and
the surroundings may reflect different colors.

The instructions about having two lights at 45-degress has to do with having
even lighting on the CC, because a gradient or vignetting can confuse the
profile-calculation process.

Back when I was using the script, I shoot the CC in several different
lighting situations, and put the color-temp and tint in the profile name so
I could choose the right one based on the WB of a particualr image.  My
suite of calibrations had Incandescent, Fluorescent, Daylight, Cloudy,
Shade, Sunset, Twilight, Sodium Vapor, as well as a few specialized ones
like Sunny-Behind-the-House for shooting flowerrs in the garden because my
house has a large red-brick wall and pale-blue upper-story that give some
color-cast to anything I shoot in the garden if the sun is more on the house
than the flowers, so I wanted to correct for that particular environmental
situation.

Now with the DNG Profile Editor, I create a dual-color script that has
Incandescent and Daylight profiles and so ACR or Lightroom can interplation
between them.  I still have spearate profiles for extreme situations such as
the mercury vapor arena lighting or sunset or twilight, but can get buy with
my single dual-color-table profile for most outdoor and indoor photos.