Except even ELVES are against what Merrill's doing so you can't even argue it's the trope. Hell the only elf that's pro what Merrill is doing is Merrill! Her whole clan was against it!
You're making something into a race issue when that's not even remotely the problem.
Her clan is against it because Marethari is against it, and she wants Merrill to give up her efforts and return to the clan.
Because between the transparency of Marethari wanting Merrill to return to the Sabrae clan and Hawke's complete and utter ignorance about the Eluvian, he's telling her she's wrong to pursue the reconstruction of an object he knows absolutely nothing about.
Merrill, on the other hand, has studied the lore on the Eluvians and extrapolated additional information from the cleansed shard. Having a human in ignorance tell an informed elf that she's wrong about elven technology that he literally knows nothing about comes across as that trope.