You can do this from the factional terminals in places like Kaadara or Rebel outpost, with same level NPC and same tactics. Different cities on different planets give varying levels of difficulty for missions.
This is working as intended. Its normal loot. Grouping and milking have been used for as long as I've been playing.
You got lucky with that kinetic rifle, but its easier to get similar stat rifles from Restuss now. With elemental.
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Nay from me.
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On the note of 60mil for a looted CDEF from glvsave. You would be surprised what some people pay for stuff. You remember before weapon stats came back, when damage was based on LEVEL not weapons (stats in character sheet), people were paying large money for looted weapons with high max, low min.
The thing was though, that weapon stats didnt mean anything (A level 1 cdef would work just as well as a level 90 GLC), the lower min on these meant that the hidden dps was lower than most quest weapons (like it even mattered), they had no elemental and worst of all, most specials didnt work with them. All you got for your 30-60mil was an extra 10m range. Even a 50 extra in max would prob give you 5 points difference in your character sheet, but lower your min by 2x that.
I wrote a huge post on this, in these boards some months back. Trouble is, someone who doesnt understand how the stats work (min, max, precision, agility, elemental, dps, level based damage), comes up with an idea, and through word of mouth it becomes true, then everyone rushes out and buys up. They think its working better, when its not, simply because they want it to. Placebo weapons damage
Not sure how well looted weapons work now, but no one I know bothers with them. Not sure if they fixed the problems with specials not doing damage.