The US and the HMMWV did great at the combat part of Iraq and Afghanistan. The real switch was from conventional military operations to the long peace.
"Instead, the new incentive for most countries would be to build a military in a way that aims to minimize the political costs... it makes sense not to build an army for conventional operations but instead with an eye towards the kinds of actions which mitigate the harm caused by failed states: armies aimed at policing actions or humanitarian operations."
MRAPs exist to minimize the political costs (dead and wounded soldiers) in a policing action. When you look at conventional wars like Ukraine, HMMWVs remain very relevant in their doctrinal role.
"Instead, the new incentive for most countries would be to build a military in a way that aims to minimize the political costs... it makes sense not to build an army for conventional operations but instead with an eye towards the kinds of actions which mitigate the harm caused by failed states: armies aimed at policing actions or humanitarian operations."
MRAPs exist to minimize the political costs (dead and wounded soldiers) in a policing action. When you look at conventional wars like Ukraine, HMMWVs remain very relevant in their doctrinal role.