I've got no problem with Bush not attending Obama's victory lap in NYC today. The former President has refused to be goaded into criticizing the current one, and thus shouldn't be expected to endorse him either. This event would simply be too politicized, and staying home shouldn't necessarily be construed as bitterness.
What I do take issue with is the notion that Bush was 'snubbed' for his efforts. A 'source' stated that: Obama gave no credit whatsoever to the intelligence infrastructure the Bush administration set up that is being hailed from the left and right as setting in motion the operation that got Bin Laden. It rubbed Bush the wrong way.
Boo hoo. Obama has publicly thanked 'the tireless and heroic work of our military and our counterterrorism professionals.' But as far as the 'intelligence infrastructure' Bush put in place? No one should ever, EVER, be thanked for the clusterfuck that is the Department of Homeland Security. Spending billions on things that fail to increase the safety of the American people is not a laudatory action. Bush did things deserving of praise. This wasn't one of them.