it would be really cool if it was possible to remove epic hits from total stats. Though I doubt it is retroactively possible
Devs can tell the difference between the number of battles won in epic battle and PvP, so yes it is possible that they split battles won/lost into seperate epic battle/PvP categories.
Explain how devs can tell? They both use to same action and are both put into the same section. The only tell tale of an pvp to a eb is the success to fail ratio and the defender achievement. Higher fail rates generally means they fight other people. The defender achievement also says how much they pvp.
Yes, I emailed the developers asking if they kept track of the seperate wins, and they replied that they did and they were "thinking" of giving us access to this information. But this was a long time ago