Before, eChrono was geared more toward the top 15% of capped melees (though a weaker melee could be pulled through since their loss wasn't as noticeable), top 15-20% of capped divines, and top 5-10% of capped casters (due to the harder CC and Spell Pen requirements).
Now, it seems like it's more geared toward the top 10% of capped melees, top 10% of capped divines, and top 5% of capped casters. It requires more SP conservation, which a lot of newer players haven't had a chance to learn. Healers at least can use scrolls to supplement their SP. Casters have to really be careful with their SP to make sure the CC lasts long enough. It also requires melees to contribute more and not do stupid things like take aggro off the tank, bust ice shards, stay with the group, and actually pay attention (no more setting auto-attack on and wandering off AFK).
While it's a good thing that underequipped players can't be drug through to completions, it also means that it is much harder to "get your foot in the door". What runs do happen generally are private/guild/channel runs, which are by nature exclusive. If you're not already in the "inner circle", it's highly unlikely that you will get to run a successful eChrono. Very few successful PUG's happen anymore, at least on Sarlona.