Too long, didn't read.
If you ask me, the reason there's a PVE-PVP gap at all is because there aren't enough people willing to teach people how to fight another player. So my proposal is simple, doesn't require a bunch of explaining, and doesn't require any input on FDEV's part.
I'll teach anyone, anyone in this thread (and anyone else reading it) what I know of PVP. Anyone that wants to learn, anyone that wants help, anyone at all - you know how to get in touch.
You can try to pass it off as a matter of time or materials or engineering or whatever, but the truth is that the only way to close the gap is to actually do it.
You expect people to buy a bargain bin game then go on a training course? What if they couldn't be bothered to read that bit before they bought the game?