Comment 7 for bug 865885

As I have stated on a comment to the linked xorg bug: https://bugs.freedesktop.org/show_bug.cgi?id=25220#c15

There is no negative impact for the selection-based copying for users who don't want it; you might as well use X for years without knowing it's existance and using CLIPBOARD without any issues.

Unless you can actually point out any way in which this interfieres with users who don't want use it, I see no point in requesting that selection-based copying isn't implemented in wayland.