Ruthless campaign Mirage Blight encounter

Just did the Blight quest encounter in Ruthless inside the Mirage (before doing it in the normal version) and one of the three lanes had the Mirage icon where a Tower immunity would usually display and 2x chest icons. It spawned nasty fast "cannot be slowed" snakes and at the end a unique Faridun boss who could also not be fully slowed but at least fought me instead of rushing the growth. After beating everything the blight seemed to end normally with the other two lanes having their reward nodes and loot dropping around Cassia but the two reward nodes for the Mirage lane didn't appear. That lane just ended into nothing. Very disappointing.

Just saw the remark "Blight chests are generic varieties" in the Ruthless notes in the wiki about the campaign special encounters. I guess that's the problem but please at least convert the Mirage reward nodes to generic ones then.

Same with the Blight encounter in Imperial Gardens but that was expected.