It's more that she's being very blunt which people aren't used to these days. This is the kind of people need to hear more often, especially in such a competitive industry.
Better that she's blunt than give them hopium. Ten minutes full of 'okay' singing and no personality is just asking to be trashed bin. This new one, I agree on the pronunciation and shitpost points. I do think Niji is getting lax with their ESL hiring, though, since ILUNA has a few members with accents that get super thick out of nowhere.
Also, F for Sleepy.