What is the rush? Even after 1.22 (which it won't be for months) is released it is not like Garuda is going to drop a bunch of armor, it will likely have primal weapons. Are we going to get the Legatus's armor in 1.23? None of those fights will even be in 2.0, but these dungeons will be. What does that tell you?

Face it these two dungeons ARE the itemization until 2.0 most likely, so maybe marathon farming runs aren't exactly necessary unless you are just dying to burn yourself out for no reason.

If they increase drop rates it would just mean everyone would have the gear in a week, and itemization would once again be a non-factor in FFXIV.