Part of that also comes from the monumental amount of power added with good engineering. If the effects were more minor and more about tweaking / side-grading, people wouldn't feel as pressured to get G5 everything ASAP.
Frontier knowingly, willingly and proudly created a mechanic that created an irresistible demand (extreme engineering blueprints) that leveraged aspects of gambling to trigger task repetition. Other developers would recognise the very unhealthy nature of those mechanics (if you give a person a lever, they will keep pulling it, even to their detriment) and seek to immediately remove them.
Not Frontier. They endlessly protested having to make changes and worked feverishly to keep the gambling intact, up until very recently. Perhaps the PEGI rating was at risk. We will never know the actual motivation for a pretty sudden about face. I want to give Frontier the benefit of the doubt, but lately it's been increasingly hard to see how one can reasonably do that.
Much of the game, is the developer realising if you give people endless levers to pull, they will. This will keep players occupied. So do timers. Timers? Players love 'em. More the better. So you can make people pull a lever 100 times, and they will. Or 1000. And you can make them wait between pulling the levers. And they will happily (well, mostly) comply. Procedural generation and RNG is omni-present as a consequence and there's a very clear design philosophy.
I think there's a propensity to believe the developer is a bit dim. I don't think this is the case at all. Dim people, don't invent this level of grind, with complicated, purposeful, layered repetition, with borderline addictive triggers.
There are a lot of things one can do, repeatedly, and not really notice (if you've spent hundreds of hours or more in the game, doing those very repeated tasks, they tend to blend). People only really notice exceptions, the things they don't like doing. Not noticing that the entire game is essentially repetition. Because it is. It's just how much of each, you can stand before noticing. This will be different things, for different people.
This isn't really special. A lot of games like this, with potential for heavy hour consumption, feature endless repetition. It's a real skill to make that work, and to Frontier's credit, they've done really well to give the game some solid life. You can play this thing for
years. Not many other games can claim that. Some triple A titles can have sub 100 hour completion times.
Of course, if mechanics became moderate, then they cease being as irresistible (the distortion is part of what drives compliance) and thus less effective in triggering repetition. This isn't a coincidence. Like I said; Frontier isn't dim. Not even a little bit.