Apply redgard over durock edgegard cement board and than apply kerdi membrane over it?

[Curiousv]

Someone said regard is like a paint and it will have some pinholes(even if you apply more than one layer) in it so wondering once redgard dries out can we put kerdi membrane over it?

I have extra regard and kerdi both so I dont mind using both of them ..I know u don't need both
Will it hurt if I put kerdi over redgard?