They both looked as easy as usual to me, and I went with a job with only i355 (and just with randoms). We died due to not being familiar to some of the mechanics, but nothing to worry about. However, I'm glad that people like them better.
None of these dungeons are even half as hard as they were in the past. I barely remember running out of time to complete them, nor doing it in the last seconds. I wouldn't like to push that on everyone, but maybe we could get Extreme versions of the dungeons, as someone suggested, that were as hard as the old ones (prior to the nerfs, I mean). If they ask me, I would even link them to the relic so that we can get rid of the mindless grind (like the original ones in ARR with Titan HM and all? Yes, please!). It would be easier to implement and way more fun than Diade... I mean... Eureka.