CCP left JF's with less fatigue and longer jump range for 2 reasons - 1. So nulsec alliances had viable transport to allow selling of products and purchasing what they can't produce locally. 2. So the highsec manufacturing industry didn't die due to lack of customers and products to manufacturer with.

CCP should reduce the bonuses on black ops and industrials by 10% each month.

right now, the chances of the JF bonus being removed are low because nullsec can just keep going "but look look, we cant possible sustain ourselves industrially, theres no infrastructure", a gradual nerf would force them to start building up early on so when the eventual changes hit forcing their independence, they wont have any real excuses to try and mitigate their inconvenience from the change (though honestly, they shoulda just cut off the JF cold turkey to start with, woulda at least started a little chaos as people moved to rearrange their holdings to provide reliabel supply lines)

but trusting CCP to always make the best chocie when presented the option between what the data says and what the loudest whiners want doesnt always pan out too well

Small gang or even fleet mining in NPC nul - Your priceless nulsec minerals need to be worth double that to each miner.

Risk vs Reward, NPC space just doesn't cut it - Too many variables (neuts) can affect whether the venture is successful or not.

Because high sec miners are worried about exhausting Jita's 10B unit/day trade in Trit?

Arguing that mining in remote locations is better because there's some worry you won't be able to offload your minerals in Jita is ... less sensible.

If I was a miner I'd rather be in Stain mining for an Alliance that PVP's alot and looses ships. I might even be prepared to accept lower payment because I know there is an unlimited supply.