3. A couple of people said in the toolbox discord that the koreans felt that players were getting clears too fast so in this patch they wanted players to spend more time in their progression. I have no idea if that is true or not.
In KTera you can join dungeons without meeting the ilvl requirement . However, you get a penalty debuff if you don't meet the ilvl requirement of the dungeon ( it is written in tera mysterium patch notes). Putting ilvl requirement to enter a dungeon is gameforge's idea.