In the end if the company decides that's where the money is then that's where their going to go, its about profits and marketing and obviously Amazon saw a clear monetary increase by changing the overall game style.
In the end MMO's based entirely on pvp generally do not bring in as many players as games that combine the two, WoW being the biggest example, if WoW was a pvp only based game it never would have reached the milestones it did, Warhammer was a great example of an entirely pvp or rvr based game and it did really well but nowhere near the numbers of WoW. If Amazon could generate a 50% increase in product sales or subs (assuming its sub driven I think so) you can bet your sweet tits their going to make it so.
Again, I feel for the pvp crowd because this was designed to be something different originally which is why I think they could have done it differently, add in PVE but do what other games did, make PVP servers and PVE servers, the only thing I can guess is that with the overall changes maybe this wasn't doable the other problem with pvp and pve games is balance, again WoW a perfect example of NEVER being able to balance the classes, skills and gear between pve and pvp and every patch or two your class goes from being a god to a peon and vice versa.
