From your description of your setup, there is no reason to go through the video switcher. If you had some requirement for “audio-follow-video” then the answer might be different.
What do you mean by audio-follow-video? Yes, I do want my audio to be synced with my video. I may also have an announcer on the side doing play by play commentary. If I don’t go through the video switcher, will there be any “lag” time or will the sync be off?
Thanks!