FT is a copy paste anime... all shounen tropes thrown in together and glued with a very unpolished way... every arc starts good but in the middle it starts to get worse and the end is almost always a disaster..
FT its liked by anime fans because it has everything anime fan and especially shonen likes (fights, nakama power, interesting characters, power ups, bad ass moments, fan service, etc) its the execution that's bad...
all these things are used so often and in very hyperbolic way that makes it predictable and not been taken seriously in the slightest...
examples:
The popular anime had a time skip so Mashima just wanted to ride that train too which led to the most unnecessary time skip in anime history!! The only reason why FT had a time skip was only because Mashima made FT the biggest bad asses in the universe and he wanted to use the "heroes who's looked down yet manages to beat them all and show his strength"....
Erza has all these cool armors yet almost every time all she needs to pull an asspull win is her self esteem pajamas...
its cool the first time it was used but when she does that almost every time it gets ridiculous...
The anime rule was that dragon slayers cant eat god slayers elements yet natsu eats and the only explanation was because natsu felt like it...
Liking and enjoying FT is one thing (i watch it from time to time when i just want to pass my time) but not knowing what u watch and thinking its a decent or one of the best anime its another thing... its a bad anime yet an enjoyable to watch...