What do you guys suggest Larian does about the situation then? The Gith having dragon riders is already established. If the dragon would join in on the fight its just an automatic game over and the Dragon-rider beeing a cocky a-hole and letting his underlings handle it like a bond villain is also not the way you guys want the encounter to go.
So what would the solution exactly be then?
We could see the dragon in the initial cutscene, but have it and Kithrak fly off before we arrive. A subordinate (Beretha) would be the one we talk to.
Or partway through the conversation, before Kithrak knows exactly how important we are, he gets a message (telepathy? magic? another dragon rider?) that something requires his urgent attention so he leaves.
Or:
Thats kinda exactly what we are saying ...
Talking with kithrak should contain this endings and consequences:
1) He find out about our parasite, but NOT about the box ...
he orders Beretha to kill us and search our bodies just in case, and leave to continue his search for other survivors ...
2) He dont find out about our parasite, nor about the box ... we agree on helping ...
he orders Berethe to return to her duties, leave to continue his search for survivors ...
3) He dont find out about our parasite, nor about the box ... we dont agree on helping ... (You are useless to me scenario.)
he orders Beretha to kill us and search our bodies just in case, and leave to continue his search for survivors ...
4) He finds out about the box (it bugs me a little that in this scenario we cant block out his Detect Thoughts)
he orders Nathanos to burn us to death ... either instant game over, or impossible fight starts ... feel free to make dragon imune to Fire damage so clever exploiters cant surround it with exploding barrels.
