I agree, however that raid, the fact it was behind enemy lines,
all evidence would be left behind, I don't think they had a choice.
I'm sorry, are you honestly bemoaning the fact the SEAL team were unable to kill the offspring of OBL? Exactly how low are you prepared to stoop?
As for the various kill videos on Ytube and the like, there is some truly stomach-churning footage where individuals are literally obliterated when it is clear they have already been put out of the game, probably for good (limbs blown off etc). The lack of restraint and/or level of hatred exhibited by western forces in these events is deeply unsettling. Its a small mercy we generally only see the footage in monochrome.