FF14 is not made for hardcore players.

[Sesera]

Tl;dr: Attitude has nothing to do with someone being hardcore or casual, its all about time commitment.

So by your logic if I spend 10h a day emoting in limsa and doing normal mode dungeons I'm a hardcore player but someone playing 1h a day and is doing savage and try to play efficient because he has little time to play is a casual.