The only problem with that logic is that if every game used the excuse "well other games dont do it any better than ours, so that means ours is fine" then no genre would ever advance. Any game, in any genre, should improve (or at least attempt to) the genre, not simply wave the its the same questing as others flag.
You are right in that most MMOs, not all, but most have simple kill/fetch quests in them but that simply doesnt just automatically give a new game a pass to do the same, not in my book.
Having said that, this line of debate is a bit of a pointless one. New World is a very marmite MMO, there are those who love it and wont hear criticism against it and there are those who dont like it and wont hear a good word about it and nothing said on here by anyone in this thread is going to sway a person to change their stance. I'm very much taking the Cohhcarnage stance on New World as it mirrors my own thoughts on it. Which is that there are two interesting numbers revolving around New World, the first being how many players it has in its 1st month and the second being how many players it has on Dec 31st. Those are the numbers I will be keeping an eye on.
I'm in the middle, what I played in Beta was OK, still needs a lot of work but was fun to a certain degree. I certainly don't think its the best thing since sliced bread. Or think its a steaming pile of dog mess. I think it will have its own following but it will be a game that a lot of people will revisit every time there is a major update announced for it. Its certainly no WoW killer or repalcement.