When you route through the receiver the TV stays on the Video input all the time. So when choose a source, you get both audio and video with a single button on the remote. No need for separate video switching, and no need to remember which TV input you used for which component. (Of course, if you have a remote that runs macros, this ceases to become an issue.)
When you go to receiver first, you have to use twice the cables. One going in and one coming out.Not so. You only need one extra video cable - between the receiver and TV. Beyond that, there’s no difference in the amount of cabling, only where it’s routed. You don’t need any “extra” cables “coming out” of the receiver unless a particular component is a recording device. In that case you would have needed those cables no matter how you route your video.
Edit:
Or are the latest-and-greatest receivers passing straight through whatever video signal – composite, S, or component - a source sends it? In that case I’d certainly agree with you, Ed. And beg forgiveness for being behind the times!
Regards,
Wayne A. Pflughaupt