$800 was set out of desperation. CBP was overwhelmed and underfunded, so the executive increased the de minimis to significantly higher than any other country ti relive their workload. The proper solution would have been for Congress to increase funding to maintain a reasonable de minimis (many countries use around $50-200), but that wasn't happening.
From talking to friends workings in imports and manufacturing, they expect what will happen is weeks or months of delay on most shipments as CBP is utterly unequipped to deal with the volume.
