If I understand your question correctly, the streaming device (BlueSound Node 2i) would need to perform any unfolding before it sends the bitstream out to your non-MQA DAC.
If you send an MQA-bitstream directly to a non-MQA DAC, it will incorrectly consider the MQA data to be regular audio data.
If you send an MQA-bitstream directly to a non-MQA DAC, it will incorrectly consider the MQA data to be regular audio data.