They "solved" the problem by completely changing how it works -and that's apparently acceptable.
However, any suggestion that there may have been other ways to approach the issue = "holy moly, the entire game is breaking!" Wtf?
•complete overhaul of race/species - fine
•complete overhaul of backgrounds - fine
•redesigning and rebalancing feats - fine
"Hey, maybe there are ways to have the 5e paladin continue to do the things people liked about it without needing to use more spell slots."
"No way, man! You're breaking the game. Do you have any idea how hard using something other than spell slots would be?"

Probably about as hard as the multiples other options within 5e that already accomplish that.