FIRST: I wish developers would simply make those kinds of changes for those people who want them in its own box so we who want to come home from work, do a few quests, take a keep, do some crafting, and go to bed can still have fun. You don't have to force players to play that kind of crap NOR do you have to completely prevent those who want it from playing it. Simply section off some players into a version of the game with those kinds of rules BAMB, just like that your game appeals to both crowds.
SECOND: It seems to me that what is really going on is you have narcissistic psychotics who actually get off on ruining other people's fun and what they really want is a system where they can take a big [censored] in someone's day by being able to do these kinds of things. Therefore they don't WANT to be quarantined off into their own little world where they fight amongst themselves in this manner, but instead actually WANT to be put in the world with people like me so they can try to ruin my precious little time to play. To this I say go to hell
THIRD: The game will not flop. It might not ever have WoW's numbers, but I know there are people out there like myself who are just flat out sick and tired of the same old same old. SWTOR flopped because it was WoW with Star Wars elements.
ESO is only like WoW in the sense that it has zones, and in truth WoW's world is more connected and loadingless for the most part compared to ESO. So even though that is a negative for ESO it is different from WoW even in this respect.
ESO = TES lore / World + Amazing Crafting + Amazing Character Creation + Actiony Combat + EXPLORATION UP THE WAZUE + SWTORish quests (though with fewer dialogue options) + DAoC RvR.
Its BIGGEST downfall is that the world is zoned off. But EACH ZONE is huge (minus the starting zones) and is structured like a miniature TES game in that you can run around and just do stuff in each zone, explore, etc. So... no it won't flop. It will appeal to many of us who are just flat out sick and tired of playing the same damn kind of game for the last 10 years.