It was never 'economic populism' (however defined) that won elections, but the promise of something better. Not that that has anything to do with Hungary anyway, as tempting as I'm sure it must be to pronounce grandly (and presumably also very seriously) about 'the fate of Europe'.
I find it humorous enough that someone had the notion that all of Europe must be regarded as one entity to which one strategy can be successfully applied. Who'd have thought that different issues resonate in different places?