They aren't equally valid points.
Your just wrong. Your opinion is worth less... because it's less of an expert opinion. It may be annoying to you, but it's just the truth. My opinion is going to be worth less then someone who's watched way more basketball that i have in order... because the different eras of basketball have changed... but in a less significant way then videogames.
If this was anything but Final Fantasy to which you were attached you would agree in this.
Additionally largely you aren't arguing with people who "played FF6 first".
Your arguing with people who played FF1 or FF4 first.
Also, playing the stories in order to get "attached" to one or the other is part of needing to play them in order. Since many story events and game aspects are recycled from game to game and credit has to be given to the correct game for originating said aspects.
For example. People treat the death of Aerith as a HUGE deal, when in reality it was a very common thing in a Final Fantasy game. Such a thing wasn't really going to surprise a Final Fantasy veteran.
Additionally playing the games in the right order is of MONUMENTAL importance, as the difference between 2D and 3D games is extremely vast. Like say the difference between silent and modern movies.
