That was a legitimate weak point. Trump said no tax on tips and she just added that same plan to her platform instead of calling out that i.) Trump was not going to follow through and ii.) raising the minimum wage is much better than removing the tax on tips.
She backed a plan to raise the minimum wage to 15 dollars. https://www.reuters.com/world/us/kamala-harris-says-us-must-raise-federal-minimum-wage-2024-10-21/
The much bigger issue I see is that policy choices are simply not communicated by the media. Half of this discussion complains about Kamala not adopting policies that were in fact in her platform. Only stories about the horse race and Trump outrage make the news (even in this community which is supposed to focus on policies). How can you get your message across in such a media environment?