This is such a non issue, I don't understand why this is frowned upon.
I'm 100% sure that you are able to completely ignore that shit, just like the FOB stuff in MGS:TPP.
It's free money for the devs, because people are stupid enough to buy it anyway. Just like a 500$ knife in CS:GO
Does this game even have a MP? Why do people care?
Just because that stuff exist doesn't make the game any less good/bad. If you don't want to buy these chest, you have to judge the game by how it's designed without them. As long as the game doesn't force you to farm that shit, it doesn't matter.