Attention is a bottleneck, and this notion of opposition oversimplifies reality where the presumption of market fraud and negative fraud tactics coexist.
Resources are finite, and we cannot waste efforts debating a purely conceptual opposition when market manipulation is a very real threat.
The presumption of price integrity is already compromised if the market is inefficient due to active manipulation, such as spreading false negative information before a share buyback.
ASIC does not perceive a logical opposition but a series of manipulative behaviors requiring rigorous oversight and sanctions, whether or not there is a presumption of market fraud involved.
Time is limited to protect the integrity of our financial market.