I see this in all the MMO's I've ever seen: 1 low-mid level update per 50 high level updates. That concept seems completely out of balance though, even if everyone and their grandmothers do have 10 50s. There are a lot of ways to make content that don't rely on high level combat skills. Low-mid level content doesn't have to be boring either. Things that require intelligence and are interesting, they can be just as entertaining as taking down Ifrit for the thousandth time. And, while Yoshi-P may not want the crafters and gatherers to be directly saving the world, that doesn't mean they should miss out on new content completely (new recipes not withstanding, it's still grind>leve>grind>sell>grind no matter what your ingredients and end products are).
Maybe more creative and interesting things will be implemented in the future, maybe they won't. I just hope that the devs don't forget about everything possible pre-lvl45. I'd like to do some puzzle solving (maybe play a card game with NPC's outside of quests) or see someone push a boulder off a cliff onto a huge mite or something below - just something different that isn't level 50 combatants only.
By the way, I've said all of this from the point of view of someone with multiple 50s in combat jobs, my highest DoH/DoL class is in the low 20s, and I've had no serious grievances with end game loot; I just prefer interesting things over battles which I don't find fun at all. To me, Final Fantasy games aren't about boring fighting; they're about interesting characters, interesting storylines, interesting sub quests, interesting mini games, interesting places to explore. "Interesting" and "boring" are both very relative, personal terms and you may completely disagree with me on every place I've used them, but I think all MMO's should cater to a wide range of interests (be they intellectual or creative or combative or emotional), and that it's in catering to different interests that opens up so much possibility for the low-mid level content.