This game doesn't need multiple 18-man content events on a weekly time-gated schedule, really on any server as populations shrink and age. It was one thing when we all were 15 years younger on servers 8 times as large, doing a 36 man OG Dynamis was workable, or multi-alliance setups in the infancy of FFXI. But we're working with fewer gaming hours (the majority of the population left, not us crazies who feed the forums) among fewer players- 6 man content that can be scheduled like a D&D night fits better if you're willing to commit.
For those who want to tag along like most small server Omen has become (6 man content that now allows 18 to enter, when less is needed now more than ever in there) and get stuff, its not very welcoming I'd agree. But there's a LOT of negativity among those not doing Odyssey on a regular basis, and those who are doing it with a static or semi-static all seem to be enjoying it and benefiting from it quickly.