I don’t see where you get the idea that a person who is not good at PVP can never be good at PVP. Personally I am kind of shocked you can complete online universe goals in single player mode. That’s totally wrong. If that’s what power play is? Not sure as I’m a n00b.
Most games have systems that put people of equivalent skill against each other. Take First Person Shooters, for example; put XQC against 90% of the population and he'd absolutely obliterate them. And 90% of the population can never overcome that gap in skill. If they could, they'd be the ones making millions streaming games. This is a law of nature, called the Pareto Princople.
Except Open is, by nature, Open. Meaning that 90% of the time would be dominated by 10% of 10% of players.
That's why Matchmaking systems exist in other games.
The other alternative is to remove skill from the equation. EVE, for example, is much more about strategy and tactics than your ability to nail your target with PA shots at 3000m.
But Elite has neither of these mitigating factors.