In your cited post you are talking / citing Agfa regarding the fact, that EVERY safelight will eventually fog paper if it is exposed long enough. This is perfectly clear.
However, I'm talking about the fact, that RED safelight is safer than orange, green, brown, yellow, PROVIDED the fact, that they have the same intensity.
A look at the spectral sensitivities makes this perfectly clear.
These magazine articles you cite, were these scientific articles or "popular photography" type articles?
In principle, one could design a vc paper with red sensitivity and a sensitivity gap at, let's say, yellow. Thats how colour paper works. But I'm not aware of a current paper like this.