Best guess? They're either truly dedicated satirists, gone off the metamodernist deep end into deep post-irony, or they've genuinely decided that modernist Grand Narratives weren't really all that bad (let's just ignore all the atrocities they brought about). After all, far-left modernist narratives aren't at all like those other, far-right modernist narratives! They're different, just like everybody else who is selling a utopia (that's only practically attainable through an authoritarian regime).