File Open still creates .DS_Store-files

Though asepsis nicely prevents Finder from creating .DS_Store-files, it isn’t of much help when the standard File-Open dialog creates them anyways. F.x. using Pages and navigating through the disk to find the file I want, leaves a trail of .DS_Store-files.

Is there anyway to fix this? Does it mean Pages and every other application showing the problem has to be in the whitelist? (