ELI5: How are the current dungeons hard?

[TDawnstar]

YOu think healing is fun when a Raidboss aoe does 10% damage to the party? or a tank buster barely scratches a tank? that is plain boring.

I agree with you about the tank buster part, but the raidboss AOEs now do quite a bit more than 10% damage ^^
But on a more grand scheme of thing, healing model in FFXIV is busted, because it's basically tuned for only using OGCDs XD