I still don't see shards being that hard to obtain. Soloing is a lot easier than in FFXI. I really have no trouble going to farm all the shards I need, and I tend to sell off a few as well. And this is me leveling pretty much every single bloody craft because they all need something from the other and it's easier to level them than try to find the pieces I need. If people ran out and did their 8-16-24 party leves, or even did some party grinding for a couple hours, that doesn't stop them from spending another couple farming shards.
I still get a ton of shards off Wharf Rats and Lost Lambs at Rank11-15. The mobs are less than difficult to kill. And as a Thau or Con I don't even use my MP regain spells. Just my R10 Weapon Skill is enough to offset the cost of Stoneskin and an occasional Cure. Sure, things may begin to change as things get "tougher", but I doubt it. One major aspect of the game is to make it soloable. That's one thing they need to keep (especially with so many people threatening to leave). And as long as people can suck it up and go farm their own shards and crystals, it's not going to be an issue.
I'm glad to see that when groups get larger the shards split, but they certainly didn't with 2 people. So duoing pathetic mobs at higher levels would yield plenty for both. Also, I never said DoL was going to supply the market. I was saying that those of us that do DoL as a more primary job won't have as much, if any issue getting shards for our crafts.
I'm also wondering about the shard-split in regards to #of people versus # of shards. If you had 6 people fighting an Earth based mob that would throw 6 Earth Shards, everyone getting 1 would be a standard split. However, when it dropped Fire or Ice, which would be 3 Shards, did everyone still get one? Because that would then result in double the amount of sub-shards from a single mob. And in regard to Crystals, when 1 drops, did everyone get 1, or just one person? Because soloing would get you maybe 1 Crystal. If a 6-person party got 1 each, that's 6 times the normal output. So, overall I'm still seeing an increase in total shard/crystal output per mob.
Additionally, higher level Leves give clusters as rewards. So the higher we get, it's more likely the more clusters we get. 1 Cluster = 24 Crystals = 768 Shards. Don't want to farm shards? Then level Alchemy, or find a friend, and farm Radiant _____ Moraine and Clusters. It's really not that different from FFXI. Farm elementals for components. In XIV we just need to also do a bit more crafting. But, presumably in 30 minutes, you could get both a Radiant _____ Moraine and a Cluster, between R20-30, and have over 500 shards. I still see no way to slow down shard/Crystal accumulation unless people just become insanely lazy.