it is solvable. it is argued it can't be solved with the current architecture but this is simply not true. it's just more difficult to solve, but still possible. just not even in the backlog.
Ok...fine. maybe it is solvable, but FD has neither the time, resources or personnel required to solve it. If you assume that this issue can be solved under P2P architecture (something I highly doubt), it would still take more time, money, and people than FD has to spare. It's not in the backlog because it doesn't make any business sense for FD to even attempt to solve. FD is a business. They want to make money, not spend money on a computer science research project. You say the problem is solvable. How do you know? You don't. In fact, you can't know unless you already know of a solution that works under P2P. If you do have a solution, please share. Otherwise, you simply cannot make that claim.
Also, the game does have a game mode that is exclusively for PvP combat: CQC mode.