Is it? Does it actually matter? Serious question.

I dont think it matters in the timespan of our species probable use for this planet.

However. Don't let that stop you from donating to my just launching "venture NGO" to study the feasibility of protecting the earth's atmosphere by wrapping it in a big paper sack: which will sequester carbon, preserve our Precious Planetary Gasses, shade us from the Sun's evil ultraviolet rays and other harmful radiation, and vastly stimulate the economy. We expect to raise $2 billion to commence the first study sometime in 2084.

Interesting links:

https://www.space.com/earth-atmosphere-extends-beyond-moon.h...

and this https://en.wikipedia.org/wiki/Future_of_Earth

suggests that the changing composition of the atmosphere at ~600 million years is probably a more immediate problem

Unless you plan to live forever, it's not a problem for you or your great great great great great grandchildren either. GP was pointing out that neither the Moon not the Earth care about human life and will do just fine without us.