This has me puzzled to the point of being dumbfounded: If libxml2-ee has fixed many security and other flaws in libxml2, then what's the point of directing people back to a project that is relatively flawed?

Licencing it as AGPL is also interesting, since the original was MIT, though I'm not sure they've worked out all of the kinks, given this example from one of the M4 files:

  # LICENSE
  #
  #   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
  #
  #   Copying and distribution of this file, with or without modification, are
  #   permitted in any medium without royalty provided the copyright notice
  #   and this notice are preserved.  This file is offered as-is, without any
  #   warranty.