The original series was based in a post-race society. When Kirk and Uhura kiss, it wasn’t an interracial kiss in the show because the concept of race doesn’t exist in the 24th century universe. It got backlash when it aired because some people couldn’t contemplate a the future without their current bigotry existing. Star Trek explored current social issues by visiting some planet with a veiled version of that issue.
Contrast that to Discovery where Burnham is having a conversation with an Admiral and the Admiral brings up Burnham’s family’s history of slavery.
The scene you’re describing is a good example. Though I would argue that given this story line is set a millennium in the future, it isn’t just lazily progressive, it’s an ultra-conservative view of the future. It perpetuates today’s bigotries as universal truths instead of challenging the audience to perceive of a future without our current bigotries like the Kirk / Uhura kiss did 50 years ago.