Atom was developed before the acquisition. Which brings us to the second proud tradition of the tech titans, acquiring companies to end the products the acquirer doesn't like.
The writing was on the wall for a long while now, and was one of the reasons why the JuliaCommunity stopped advocating Juno/Atom as a platform and instead switched to VSCode
Atom is inferior in every aspect to Visual Studio Code. Atom was on life support for too long.