The problem with zooming out is that the speed of light sets a specific size/time scale so the more zoomed out you get, the more disconnected the big picture is. The observable universe is a mere 93 billion light-years across, so there's a limit on how far it makes sense to talk about zooming out. Also, with the universe expanding, the observable size will reduce over a long time period.
The scales involved are vastly different than the minor difference in scales between bacteria and us - we don't have to worry about the speed of light for anything that we currently consider alive.
Not to mention, the signal strength seems too weak and unstructured to be useful as a basis of any higher order machination. A supernova is unlikely to cause much of anything outside of its immediate vicinity. Unlike neural pathways that are highly structured and mostly lossless, radiation disperses out in all directions and weakens with the square of the distance.
Unless there's something big we're missing. Maybe the cores of stars contain the final ingredient required for DNA formation or something.
> The observable universe is a mere 93 billion light-years across
As a non-astronomer, that number still always boggles my mind.
> Also, with the universe expanding, the observable size will reduce over a long time period.
Also boggles my mind. Also makes me think of doctor who when the stars start disappearing. I need to rewatch that...