What's bardically means ?
This word is excerpts from this paragraph.

Poetic exposition no longer functions bardically, to draw us together into a social collectivity of shared values, but instead exposes, poetically, the social construction of that form of collectivity which allows for hierarchy and representation to go hand in hand. Trinh Minh-ha refuses to speak for or evoke the poetic essence of another culture, and instead renders the rhetorical strategy of empathy and transcendental unity strange and does so within the terms of a poetic exposition rather than with metacommentary such as a reflexive documentary might adopt.

Question

What's bardically means ?
This word is excerpts from this paragraph.

Poetic exposition no longer functions bardically, to draw us together into a social collectivity of shared values, but instead exposes, poetically, the social construction of that form of collectivity which allows for hierarchy and representation to go hand in hand. Trinh Minh-ha refuses to speak for or evoke the poetic essence of another culture, and instead renders the rhetorical strategy of empathy and transcendental unity strange and does so within the terms of a poetic exposition rather than with metacommentary such as a reflexive documentary might adopt.

Answer

A bard is a wandering poet who uses poetry to tell stories and histories. Bards travelled from place to place in the middle ages and before. This was before most of the population of Europe became literate. As a result of this, bards embodied the cultural values and identity of a society. 
Poets no longer do that. TV has replaced them.