I liked the zones this expansion, honestly. But yes, they are devoid of all threat which sucks... Flying also ruins the exploration element... I understand the convenience of flying for side content like gathering, FATEs, and Hunts... But that isn't going to stop me from disliking it.
Holiday events need to be a lot more substantive, even if it is just padding it out more.
Dungeons... Honestly the community are largely in part the reason for this.