Some WOULD absolutely consider it fun. I get a charge out of being efficient at work when performing manual labor, which isn't often. Its a competition with myself to see if I can doe better than last time.
But in game, I'm very lazy, and I like it that way.
I am, quite frankly, not built to be efficient.
Nowadays, even moreso than back when I was working. I still am able to get something done, if my health allows me to. But only if I avoid any form of stress while working on it.
In game, I am easily distracted from my recent goal by something I find along the way. Like, I go onto a tour through the bubble, visiting some engineers to get another ship built, only to stumble across a ship I would like to have and buying it right away, equipping and remote engineering it, depleting the materials I had collected for the other ship to be "finished"*...
And I tend to find myself unable to do the same thing (like mat collection or mission runs) more than two sessions in a row.
*: As finished as you can get the engineering part if you don't have unlocked all the G5 stuff you would need to get it really done.