Keeping it simple is more than just minimalist design. It's about designing with intention and a clear purpose. Each time you add a new item to a page, it adds complexity which can potentially decrease usability and accessibility.
Tables should be used to present tabular data, and not used to create document layouts for visual aesthetics. Tables should have a simple structure with properly formatted column headers to help convey their relationships. Poorly formatted and inconsistent table layouts are difficult to navigate with screen readers.