There's still the old DB Video about Permits :
Keep in mind : this is from 2012 (!)
Now think about for how long many of the Permit Areas/Remote Systems have already been locked. That's about 5 years for most of them I think.
"Future Content" was the official reasoning, yet after so many years the Future has become the Present and Past already. And still nothing.
The term "move along, nothing to see here" comes to mind. Nothing there.
(and please do note his body language when he starts talking about Players mapping those locked cut-outs. "Ironically, that's all part of the excitement". Well, not so exciting after all, rather the polar opposite. "Reserved for Future Content" there can safely be regarded "Future lack of Content". At this pace, the project will have long ended & shelved before any of that supposed content has materialized.)
Its only use is to hype Players/Explorers by making them believe those areas would be "special" in any way. They simply aren't, a characteristic they share with most of earnable System Permit Unlocks.