The real story in ASEAN's pre-BRICS currency acceptance isn't trade — it's what happens to USD stablecoin liquidity in Southeast Asia when BRICS settles in a competing currency, and nobody in the stablecoin ecosystem is modeling this risk yet.
BRICS currency adoption by ASEAN directly pressures India's CBDC bridge proposal (active thread) to become the architecture that survives — India sits at the intersection of BRICS credibility and Western payment legitimacy, which is why the India CBDC bridge is more important than previously framed.