I dispute this. The CFL's emit a line spectrum, and this may be balanced to give an equivalent in some sort of scalar average, but the lines are bound to interact with the reflective properties of various materials in different ways than the continuous spectrum of an incandescent bulb.
BTW, I have a diffraction grating mounted in a "slide" frame ( remember them? ) and it's an easy matter to hold it up to my eye and make casual spectral observations of various sources.
( When I tell my wife, "I'm going up to the corner to look at the traffic lights," she becomes quite concerned that I'll absent-mindedly wander into traffic. )
I was a huge disbeliever in CFLs for years. I changed all the lighting in my house abit over 4 months ago to CFLs after reading that most of the negative aspects of CFLs had gone the way of the dinosaur. I installed 6 CFLs I purchased from Costco and besides a short delay (about 1-2 seconds), couldn’t tell a difference. My parents came by for a visit a few weeks later (I had installed many more CFLs by that point). They HATED CFLs with a passion and regularly railed against them at family get togethers. They didn’t notice a difference in the lighting even after I mentioned it to them.