One point which I agree with @bckimilin is on exaggeration. It does no aid of any kind to the discussion at all.
There are some monsters in the new content which have mdef which is too high of a hurdle for magic classes to fight against. Players with low investment in magic attack suddenly find themselves dealing 1. Others with moderate magic attacks deal much much lesser than usual, not 1 but is really low. My guild master who is an ele3wl finds her character dealing only 400-500 and sometimes 1 damage per tick @ Zima and she isn’t full con at all. Having 16k hp at level 317 makes her so fragile and everything else is invested in INT.
Not that monsters can’t have higher defence, in fact higher defence is good to prevent having too much damage creep (damage going up in the millions). But it becomes depressing and bad for the player community when higher defence is used in conjunction with higher hp pools.
6k frost cloud on a 200k monster takes 33 ticks to kill
500 damage frost cloud on a 400k monster takes 800 ticks to kill
1 damage frost cloud on a 400k monster take 400000 ticks to kill
These high mdef monsters are exponentially harder to kill than their physical counterparts, which is why some tweaking on the mdef ratings of the monsters is necessary.
Changes in this game should be catered for the majority of the playerbase and not only to the top percentile. Similarly, players should at least be able to clear 50-60% of the game’s content just by playing normally.
I support that common items like 270 versions of superior corona rods are needed. Players can’t just wait for their practonium to drop to craft their purples and oranges. Players who don’t surf the forums/reddit or ask around would not even know about the practonium quest which is hidden in the highest level map of the R8 expansion at all. And by the time they hit that map, they would have gone through all the previous content while battling monsters on their 170/220 weapons.
Paradoxically, in order to actually acquire materials for these purple/orange upgrades, the players have to plough though content which require these weapons.
Having white and blue weapons will help greatly to mitigate this issue in conjunction with the mdef+hp pool tweaks.

. Most likely 1.3 - 1.5m of hp with 8k mdef or so. Just normal mobs.