Because future generations will forget he was dug up and moved and assumed he was always given a kings burial in whatever cathedral he ends up in, when actually he was killed in quite a nasty way, and given a small funeral (not quite a paupers funeral, but certainly low key) in a small church. That is the story of the last english king to die in battle, and that history will now be forgotten.
At the end of the day the sole reason he was exhumed and moved was for the university to get itself in the media, it really has served no other purpose.
In addition I also think its disrespectful to disturb any burial ground except extreme cases for instance when exhumation takes place for murder investigations etc.
British history forgets its folklore tradition, science has to prove its worth by finding dead kings, and making a media frenzy about it, but in doing so trashes the history that education has been built upon...... Its commonplace now...... I bet if you ask most History GCSE students what the earliest religions where in England they'll say Christianity, which most people with an interest in history should know it wasnt.