No-one suggested making every system the same, that would be boring as . This game already suffers from a relative lack of visual interest compared to other galaxy simulators e.g. Space Engine.
There certainly is a reason; the game will in certain instances actively encourage you to go 'the long way' due to the rewards systems. Thus you will inevitably at some point (read: plenty of times, over any significant period playing the game) end up with a choice between sitting staring at a static screen for 5 or 10+ minutes waiting to get somewhere in SC, or having to do multiple other missions to make up the same amount you would have earned with a more pain-in-the- mission of the formerly mentioned type. These are not sensible things to force players to choose between.
What's interesting about all this to me is that is doesn't make any logical sense. If you have jump technology that somehow gives you a pathway between stars, why can it only send you to one star in the system, if there are multiple stars placed far apart? Is there some in-game justification for this?
While I agree with your points in theory, I don't think the time durations you've mentioned are significant enough to really warrant change. The scale and time it takes to travel in Elite are part of what makes it a special game - love it or hate it - and FDev need to be very careful not to reduce this any more than is strictly necessary.
If destinations like Hutton that are over an hour away from their main star were the norm, then I would definitely agree that that is not respectful of the player's time or indeed 'good' gameplay. However, Hutton is an isolated case and has achieved relative fame/infamy due to this.
5 to 10 minutes isn't too long to travel in supercruise, I feel. At the start, I remember that even travelling 2-5 minutes in SC seemed like forever. You get used to it though, there's no denying that as you play Elite more you become accustomed to the time it takes to travel and it doesn't seem nearly as long as it used to. I will regularly travel 100,000Ls to 500,000Ls away from main stars to tag interesting systems without breaking a sweat - it's actually very relaxing gameplay that rewards patience, something that very few games seem to capture.
We don't need another fast-paced space shooter adventure game. While I can appreciate that many people would enjoy that, I don't believe Elite is all about that. Us CMDRs are a special bunch of people with a penchant for punishment and we need to get our fix by spending obscene amounts of time jumping or travelling in SC. The reward for our dedication is worth it, IMO.