I'm guessing the mission parameters (assuming it all went down roughly as advertised) were:
1-kill or capture OBL (preferably kill)
2-verify DNA
3-gather any and all intel onsite
4-destroy all traces of his existence
5-get on with life
No pomp and circumstance, minimal showboating. No carrier speeches with giant banners. Get back to business back at home.
Tidy.
