For us, this decision is contextual, based on what specific channel combination is being multi-viewed at the time, and why. In some scenarios it works great, and others the layout is better off with no obstruction. It depends on what the āmain eventā is, and who's there watching, I suppose. For us, at least.
The two side-by-side views require an awful lot of black space though, and on a big screen that can look a bit silly, to be "wasting" so much of it. And the āpicture in pictureā layout seems more in line with Apple's native tvOS interface guidelines as well.
Regardless my request for this was not to replace any of the available layouts, but to be offered as an additional option so everyone can choose what works best for them in any scenario. And Iām grateful this request is being considered for future release.