I have not built an ARF Vector, but have built two ARC Cardinals and one ARF Nobler. I saw the crimped leadouts and didn't think twice - I cut into the center section and replaced the leadouts right away on every one of these planes. They all have many flights and are still working well.
I have enough problems in the center of the circle already. To achieve success in this hobby/sport, you should try to eliminate as many problems as possible. That's why we spend so much time, effort, and money to build straight models, get consistent engine runs, and trim out our planes.
Why leave something to chance? I have seen a couple of these planes fly very well in stock condition, but I have also heard a few horror stories.
My vote is to go ahead, spend the two hours and change the leadouts. Then you can worry about something else.