Geniune question: would writing assembly today be practical at all?

You could make the argument that eg space software or nuclear etc... would be a candidate.

But since assembly is so difficult to read this alone could introduce many bugs as soon as you'd eg have to maintain ~3 months old code since you will forget the details by then even if you are the one who wrote so you'd lose the "context" since in assembly it's much easier to lose the "context" of the task due to its less-intuitive nature than a high level programming language.

Since even space etc... software today I assume is way too large to write in assembly? Or am I wrong? Eg how large is the main "thruster" code for SpaceX? But all of that has to interface with many sensors, redundancies, backups, telemetry...