What, someone has had the game for 2 minutes and starts ganking in an Adder or whatever they've managed to get? Please!
Player fueled Pay to Win exists in games that DONT have ease of credit transfer. I refer you to Destiny, which had its endgame PvP activity plagued by IP flooders. You'd be stunned what people will fork out for laughably easy activities, let alone Trials runs.
People can transfer credits via cargo now. So there is nothing stopping someone who's had the game for two minutes spending those two minutes getting high value cargo from a friend, getting loads of cash, getting a big ship and ganking. So your point is moot. They can do it now, FD facilitate it. It might take a little longer cargo scooping but you can do it.
Destiny has a lot of players. ED does not have a lot of players.
There is profit to be had from a lot of players as a small section will A) have the money to spend and B) have the will to buy credits.
ED does not have a lot of players in comparison to Destiny. A small section of players willing to buy credits for a game that doesn't have many players is not profitable for gold/credit sellers to bother developing an operation to sell the credits.
There are many other games out there that you could buy credits (or whatever) for the game but in reality you can't because it's not worth someone's time setting up an operation to sell credits to a small amount of players.
So it's not going to happen for ED. I can understand why it would happen for Destiny (due to number of players).