I simply didn't like the story. Picard has a clone. I'd been watching variations of that for 40 years, ever since Twilight Zone
's "In His Image", though it had androids. Data has another twin! Just like Lore! Yawn. Then there were the Remans, whom we'd never heard of before, but were apparently a significant underclass in Romulan society.
Tom Hardy did well with what he had to work with.