Why Widget Cannot Be Converted to Input in ComfyUI?

In the new version of ComfyUI, the conversion between Widget and input no longer requires manual intervention. You simply need to connect the corresponding line to the input of the component, and the component will automatically convert to an input. You can watch the video below to understand how to operate:

However, this improvement has also brought some issues. Some custom nodes rely on identifying whether the corresponding widget has been converted to an input to utilize capabilities similar to global inputs. With the updates in the new version, this may cause these custom nodes to malfunction, requiring the authors of the custom nodes to adapt to the latest version of the ComfyUI frontend.