It's a shorthand for someone who isn't opposition but made error that can be described in terms of other political alignments. Elsewhere I call the CR "utopian" not because Mao wasn't a Marxist socialist but because in his particular implementations there and sometimes elsewhere he made the same errors that utopians make. Deng likewise was too right wing in his approach, but not to the point of being an anti-Marxist.
It's a shorthand for someone who isn't opposition but made error that can be described in terms of other political alignments. Elsewhere I call the CR "utopian" not because Mao wasn't a Marxist socialist but because in his particular implementations there and sometimes elsewhere he made the same errors that utopians make. Deng likewise was too right wing in his approach, but not to the point of being an anti-Marxist.