Solas' End - What would Satisfy you?

Even Felassan had vallaslin and, whilst not specifically stated which god in Masked Empire, PW said it was likely that of Mythal, which I seem to recall is the vallaslin shown on the elf in that picture. So they could merely be another of his ancient elf followers or a Dalish that had left their clan having heard rumours and wanting to join up. In fact they could even have been sent by their Keeper to investigate. If our Keeper in DAI was willing to send one of their clan to investigate what was happening at a Conclave of the human religion that had traditionally been their enemy, would it not be even more likely that a Keeper of a clan, hearing rumours of an elf calling himself Fen'Harel gathering elves to him, would want to send a spy to find out what was going on?

To be honest, that picture always looked odd because we know Solas was antagonistic towards the Dalish and the slide said the elves who were disappearing were servants, therefore city elves who do not have vallaslin. So why show the face of the elf having vallaslin? Perhaps the person responsible for drawing the slide was simply told to show a bunch of elves making their way into the forest and just assumed that would include Dalish.

That would be true if they knew that he was responsible for a rebellion in ancient times but the Dalish don't. He was simply a trickster who betrayed both sides in a war and doesn't really care about the fate of the elves. So if an elf is calling himself Fen'Harel, the one thing they would take from that is he shouldn't be trusted.

However, as I explain above, a Keeper hearing about this might well think it concerning enough that they should send a spy to investigate. It is something I wonder about. How does Solas know he can trust every elf wanting to join him? I suppose he could consult with spirits of the Fade on the matter but if there are ways to stop your mind entering the Fade so he can locate you (as Felassan knew about in Masked Empire), may be there are also ways of preventing denizens of the Fade finding out about you. I'm not sure that the Dalish would be experts in such magic but it is a possibility.