It's mostly directed those who are "Willfully ignorant". I encountered a similar discussion while visiting some board about Space Battleship Yamato (a.k.a. Star Blazers) and its remake, Space Battleship Yamato 2199: Those who only saw the remake, but are unwilling to watch the original series for context were looked down upon. Some people took it as a form of elitism, while others mentioned that the reasoning behind it is because these newbies formed their preconcieved notions around a "secondary" media installment.Well sorry
lol
I guess you can say the same thing about people who play Persona, but have never played any mainline Shin Megami Tensei game, or people who started with Final Fantasy VII, but never played any of the older games. There's some form of resentment formed from the more popular installment because it creates false notions about the franchise based on a newer experience.
Kinda like the people who's first exposure to a Tomb Raider game being the 2013 reboot as opposed to the original: They might have, this notion that Tomb Raider, as a franchise whole, is a rip-off of Uncharted and Gears of War, simply basing it on the most recent entry.