Actually this article missed the whole core idea, from Snail official site:
"acts as a bonus, completey optional feature to supplement normal game progression. PvE experience and PvP rankings remains unaffected and all levels of equipment and mater…
The monetization model is fine in my opinion. Since it only locks the ultra rare and higher level material that you may or may not need. I don't need to stress the fact that how many useless rare materials that's not your class-specific gets droppe…