Answer
No, it's accurate — a single window or page in IEE is often composed of multiple separate client forms/controls that each individually belong to their own component, and there's no rule requiring everything inside one window or tab to belong to the same component as the tab itself. A tab can be gated by (and only appear when) one specific component is installed, while a smaller section nested inside that same tab is built from a genuinely different, separately-owned control belonging to a different component — System Info correctly reports each individual control's actual owning component, which is why it can show something that initially looks inconsistent with the tab-level gating you're used to. This modular, multi-component composition of a single window is just how IEE windows are commonly built, not a reporting bug.