In the original cartoon, it is explicitly shown that Triton does not like, or enjoyed or wanted to harm or hurt Ariel by destroying her collection. He wanted to protect her from her own follies and didn't know what else to do. At worst, flawed but well intentioned.

This is obvious on the shot of his face, showing his sad expression, hurt and regret as he looks back at her and as she starts crying, as he leaves. This important nuance was completely cut out from the live action film. Doing so recontextualised the entire scene.

Which in the film does make him look like a crazy asshole father, do not know why this was done as it just unnecessarily vilifies him without reason and removes previously shown emotional depth and context from the cartoon. My guess was because he = man, and man = bad, which went along with some people working in the film and some others saying that she had dropped everything for "a man."