Hello, Alexandr.
The simple answer is that FD probably didn't have time to code the feature before the game released - and since it came out, the insanely long trip to a place called Hutton Orbital has acquired a cult following, one that FD doesn't want to upset.
The Hutton Truckers were at the expo, the other day - and one was kind enough to explain why they do it.
Despite being tired after a long day - and plainly irritated by a question he'd obviously already answered a thousand times - I could see the pleasure in his face as he described his experiences. They go out together, all having a chat and a laugh - for them, it's an online social event, centred around this strange, shared, ninety-minute-long dull task. I can tell they really do get a lot out of it, for all the onerosity of the task itself.
They're very nice people, doing good work for charity. As strange as it seems, this is their entertainment. I don't want to interfere with that, any more than Frontier.
After that conversation, if I were FD and I wanted to make intra-system jumps possible, I would have it so that each such jump in a given system, in a given week, leaves a hyperspace disruption pattern that interferes with all subsequent similar jumps, exponentially increasing the risks of a misjump - something that will dump the unlucky Cmdr in the middle of random nowhere, with serious damage to all systems.
The first jump is virtually risk-free, all the rest are risky or deadly. It's slightly exploitable over simultaneous instances, but not too much. Hutton Truckers get the same experience they always have, since there'll never be any real chance of a good jump, given the numbers of inexperienced Commanders trying for the short-cut every day.
Impatient players, or Commanders in the bubble trying to escape pursuit, get a new, very-high-risk manoeuvre in certain systems. Dedicated explorers in deeper space get a free time-saver, if they want to see every star in a system close up, as well as a dangerous temptation in widely-spaced trinaries.
I think that would work quite well for almost everyone.
