Why can't Coil have the same loot system as CT?

[Sindele]

A random number generator is not an indication of difficulty.

The only thing RNG provides is a chance that you could go 10 weeks without getting a single drop.

Nobody said anything about difficulty, aside from the last point which was more to say that I'm not reliant on two other groups I don't know in Coil like I am in Tower.

Yes, the RNG is R. However, that applies both ways.