Shieldless, no dirty drives for speed, no point defence, no heat sinks,
Shieldless I can understand. High-G planets punish you for being that naive, same for being a reckless pilot and boosting in/out stations.
Dirty drives should never be put on an explorer, heat is bad for long-term flights. That sh*t adds up over time and I don't know about you, but I like saving my mats for engineering other ships instead of wasting them on replacing expended AFMU ammo and such. Think of the environment around you and go for clean drives.
No need for point defense unless you're seeking treasures on Guardian sites(those missiles are bloody annoying). Otherwise PDT are wasteful and reducing your jump range by that much more. .10 lyr differences in jump range gets reaaaal big after the first 15,000 lyrs or so.
Heat sinks should never be manditory, even less so than AFMU's actually. As they are good for overheat problems, while that is not the case if you properly tune your ship for not insta overheating the instant you think of a star(looking at you, Stock Asp)
What you gave was a mediocre, at best, example. Try again.