It matters because it helps the "Elon Bad" storyline, that seems to be the connecting thread between all these "reports" whether about SpaceX or Tesla by some news outlets which dont even do the due diligence of putting the stories into any kind of perspective or try to find out if the implied premise of the headline is true or should even matter to the casual reader.

Based on the previous discussion, it releases pollution that may or may not matter.

I found this one weird trick. I select key words in an article and use an internet search to answer probing questions like 'why this matters'.

For example: Near the top of the article is the sentence: "Kessler syndrome is bad; atmospheric incineration may be worse, says astrophysicist Jonathan McDowell"

So, I searched for "kessler syndrome". Here's the hyperlink for reference: https://duckduckgo.com/?t=ffab&q=kessler+syndrome&ia=web

Now here is the cool part. I found a Wikipedia article about "kessler syndrome" https://en.wikipedia.org/wiki/Kessler_syndrome and it explained why this matters!