>>534679996
I think due to how long Trails arcs can be people get overly attached to the characters of a given arc and can't accept that when an arc is over the series is meant to move on to new things. So you have people who think the whole series should just be about Estelle or Rean and their friends when the whole ethos of this series is supposed to be that there is no one "true" protagonist so they get mad at the other arcs for taking what they perceive as their rightful spotlight.
Most Trails fans are accepting of what the series is supposed to be but the loudest vocal minority will always be complaining about anything that's not "their arc". You don't really have that with many other series so you get less of these kinds of autistic forced rivalries (though they will always exist in some form no matter the series though they'll usually take on a different form). It's why every argument about this series always ends up like "x arc sucks it should have been more like [my favorite arc] instead" instead of either liking a game or not.