I still disagree with this aphorism for the reasons I stated above. Just as I disagree with that Anon's reply entirely. He also thinks Adorno, Horkheimer and Marcuse are postmodernists, when none of them are (let alone the FOUNDERS thereof), and are just Frankfurt continentals. He's deeply confused, possibly from /pol/.
Even if we take your 'narrative as narrative' deference from modification, this is still a problem, because it's denying the context from which post-modernism stakes the specificities of its rejection. Post-modernism, in its rejection of (grand) narrativity, is a kind of socio-phenomenally mediated ontological skepticism, which is itself contingent by way of the internal process of its mediation, and as such, it cannot be axiomatic* nor prescribed as an ultimate social end or absolute* (* *which is what is meant when speaking in reference of 'Grand Narratives'), since the ever-presence of its possibility of self negation subsists via its self-destabilizing processual temporality (and so, it, that is, the rejection itself, can therefore be dethroned and de-standardized, and it never realizes any kind of necessary standardization of itself, all without recourse to any axiomatic necessitation in its functionality).
Now, a grand narrative is a 'category' (all things are, in some reducible sense, categorical), in that (and insofar as) it belongs to 'being a category', but the concept of 'category' is not, in itself, a grand narrative. That is, the definition, or essence of what a category is, formally, is not 'grand narrative' (i.e a cat is an animal but the formal concept of all that is animal is not 'cat').
What's more, from your reply I can gleam that you're an analytic cockshott anglo kinda' guy, since your misinterpreting the usage of the word subjectivity. When I'm referring to subjectivity, in an idealist sense or not, I mean 'subjectivity' as a shorthand taken from the history of continental philosophy ranging from antiquity and beyond, to mean cogito or personal ontology; I'm not thinking of subjectivity as if it means the subjecting thereof. The imposition of any kind of systemic bias relates to the personal, this doesn't mean a wholesale negation of the existence of the personal, and there is an a priori 'personal', the foundational sense of interrelation to the world regardless of all else. Conversely, objectivPost too long. Click here to view the full text.