Its not that. Grinding for regular eververse items is alright but throughout the whole dawn event for 3 weeks, you can only get a total of 9 dawning engrams. Meaning, it's impossible to get what you want. Sure you can buy things with bright dust but that doesnt mean someone has enough bright dust to purchase the items for every one of your characters. Plus, the Gift Schematic rewards don't give bright dust upon dismantling so it means you're really limited on bright dust after purchasing 2-3 items with said bright dust. Grinding for illuminated engram's isnt a problem, its the fact that dawning engram's are too limited.