I understand the sentiment of no more being able to easily decide whether someone is 'good' or 'evil', but I have to agree with that decision in 5E. People can do the worst kind of stuff out of altruistic motivations, and selling your soul to be able to defend those you love, well...:) Good stories to be found there.
As for Paladins, I don't feel they've been 'damaged'. The Oaths of Devotion and Redemption still exist for anyone who wants to play that kind of 'classic' Paladin. But those who feel that Paladins are mostly defined by their Zeal and strict adherence to a code, whatever their cause may be (and I subscribe to that notion), the class is now wider open.
