The grove is in danger of being razed by goblins. This isn’t a normal situation. I can’t see how anyone would trust any goblin in that situation. There’s too many risks.
Same goes for drow. I fully understand concessions have to be made to allow players to play certain races but there’s a lot compromises to make it so. To me there’s a lot of suspension of disbelief.
Quite frankly I’m shocked the tieflings and druids were so welcoming to a random group of adventurers. But I get it. Cuz story and it’s a game. Doesn’t make it logical.