User blog comment:Miskos3/Fairy Tail Episode 258: Tartaros arc: The Fire Dragon's Iron Fist, Review/@comment-24039234-20151107122842/@comment-4829046-20151110101011

Doesn't change the fact that the ending of KotSS in inconsistent in many ways especially in terms of the Oracion Seis going by the characters they possess after their actual release.

Here's how you should probably view it- you could see the Zentopia incident as something that happened, but not in the manner seen in the anime. For instance, think of it as the work of some random group that got a hold of a small part of research done by Arcadios and decided to utilize magic of lesser CS mages for their dark gains or something along that nature without involving Lucy or Yukino(or perhaps make it so that Yukino herself was involved in solving the Zentopia incident). Do that, and you basically have your canon. Mashima did indeed provide quite a bit of material for it, but as per usual general filler, his preferences might not've always won and he would mostly be happy with anything since it was the first time one of his series had got an ongoing anime that needed a whole filler arc(a season's worth to boot) in order to continue airing and let's not forget that some of the messages in KotSS were more aimed at younger demographics much like the Eclipse Arc so it wasn't really meant for people like us that expected the greatest filler.

But that is old hat. What about me? I loved some of the music(especially Glitter) during KotSS and the openings were great when they came out. The characters could have been better, but while they were badly portrayed, they were amusing(let's not mention the '3' gag character thou....) and the designs for the ROS were great(since they were by Mashima) The theme regarding Lucy was good as well. Everything else though? The actual way the plot went? Character development and consistency? Yuck. I know people criticized the Daphne arc before KotSS but ignoring Gray's 'Sasuke-comparison' thing that arose and has been coming up many many many times, it was actually enjoyable because you weren't supposed to take it seriously.

Of course, if you find KotSS great and with far fewer flaws when compared to the other arcs of FT or shounen filler arcs in general, then feel free to do so since opinions on those matters are highly diverse, where at times there is equal love and equal hatred for particular arcs. I can name the points in each arc(except the mini-arcs at the very beginning for obvious reasons) where some fans went batshit and even considered dropping. There was plenty of bitching(mainly during OS arc) regarding the fall of Deliora and Lyon's defeat loooooooooong after the end of the Galuna Island arc, to give you a rough idea of what I mean.