The constitution states that every char has to be able to craft and fight and that's that. If constitution says that, then the 2 default necessities are crafting and fighting regardless what players expect. So in the end they get to choose 2 things: how they fight and what's their profesion.
IMO thats rather stupid idea. If everyone will have all proffessions (good crafter + good PvP) in one char, then there will be no diversity. No difference between characters and their builds. What I love in FOnline, that there are no classess. You can make great crafter. You can make great PvP. Or you can make decent both.
In RL you can't be good at everything. Life is about tough choices. I want to be a good worker, so I have to give up a little with my hobby, etc.
And every character have strong&weak points. If you have some weak points, there are some PERKS which can minimise the weak sides (pack rat for low carry weight, Sharpshooter for low PE, More crit for bigger chance to crit, Magnetic personality to travel with more friends, Weapon Handling for low ST etc). So you have to PLAN your build to be fairrly good at SOME aspects of game.
And there is also possibility of making alts. If you want to play PvP char, you make one. If you want to play crafter from time to time, you can make one too. But characters "all-in-one" is really bad idea...