The red may eventually come out if she washes the quilt repeatedly in Synthrapol. Synthrapol suspends unset dye particles in water so they rinse away instead of settling into other fabric. I use it the first time I wash any quilt, and continue using it if I notice any color in the wash water. It would have helped prevent the red settling into the other fabrics during the original washing.
Even now, though, if the bleed has not been permanently set (by heat, by age, etc.), Synthrapol is likely to gradually lift it out. It would be worth maybe 2 washings to see if there is an improvement or not; if there is, then additional washings are in order.
These multiple washings are somewhat hard on a quilt. If it's a really old quilt, I might hesitate to try it.
Synthrapol is widely available online from Dharma Trading, ProChem, Amazon, etc. Quilt shops that cater to home dyers also often carry it.