Has it though? Where did government get "out of the way"? Where did government "in the way" to make the economy thrive? What does it mean for an economy to thrive anyway? Is it more important for an economy to be efficient, or the people being (ostensibly) subjectively happier with it? After all, several poor countries rank among the happiest in the world.
The fact that neoliberalism has not shown itself to be a panacea should not be held against it, considering the lack of demonstrably superior alternatives.