This is so true. The old hats (vast majority of current player base) are in for a rude awakening when they realize their beloved solo game has been turned to a multiplayer game, and they are getting attacked "for no reason OMGZ". Some of them will go to solo and be happy, but many will come to whine on forums.
If FD doesn't stick to their guns and vision, it'll dilute the game, turning it into My Little Ponies in space.
I see this problem more from younger crowd who have played NPC neutral MMOs for years. Old hats are used to sociopath pirates in previous games.