The post from Tuta did speculate that given the timing, the issue may be related to DMA changes. The issue is that they can't even reach a human at Google with authority in the associated systems to understand the issue.
Their speculation seems to be that there is some maliciousness or intent here, rather than a natural result of the DMA changes. My point is that it could be the latter.
As for reaching a human, my understanding is that Google does not discuss ranking reasons with companies on purpose, in order to prevent bias and gaming of the system.
As for reaching a human, my understanding is that Google does not discuss ranking reasons with companies on purpose, in order to prevent bias and gaming of the system.