Yes, the old system was horrible, to do the quest you had to have some on your quest level to do it.
+1, ZOS took the initiative couple of years ago and reworked all Craglorn content to be soloable mechanics-wise. They even reset all quests for old players so they can experience them again.
The group delves can be a bit hard for new players, and even veterans can die on main bosses if they don't pay attention. These bosses compare to regular World Bosses with the difference that they usually have less HP to burn down.
ok to be honest it has been a while i've done any dungeons in Craglorn. Maybe they changed the mechanics. I remember one where you had to stand on 3 or 4 plates for a door to open for example.
If they changed it, my bad
From the School of Hard Knocks for what it's worth:
I've been booted a few times from group delves outside of Craiglorn for poor performance.
I found soloing a few group delves in Craiglorn to be an excellent build test.
If your build survives than you can probably handle the average normal group delve outside of Craiglorn.
Soloing group delves in Craiglorn is more difficult than public dungeons but easier than soloing group delves outside
of Craiglorn.