But it is part of the export. I mentioned it twice.
…even if Solo Defeat is enabled in the effects track and downstream group…
8: Enable Solo Defeat on the “Echo” effect track
9: Enable Solo Defeat on the “Effects” group track
To be absolutely clear, Solo Defeat, in this context, enables the Effects subgroup in the export. Without it, you would be correct - the Effects subgroup would not appear in the export.