Interestingly enough drop rates are actually almost completely in line with older content, but the perception that drops were nerfed comes from the fact that Elites are taking a lot more investment and time to run and thus dropping loot at around 1/20th the rate they were. Less people farming the content effectively means less loot on the CS, for trade, etc.

There are positives to consider as well as just the perceived negatives. For example the value of level 26 elite legendary items that drop in the Elite dungeons is a lot higher this time around due to their scarcity, typical of supply and demand scenarios. We need to find a nice balance before we pull the gun on a flat nerf, because once the loot is in the world, there's no taking it back. Imagine the chaos if we made a mistake and Mythic helms were dropping all the time and flooding the market. Not very exciting is it? However we're also very aware that 1h40m is too long.

Don't worry guys, we are aware of these things related to current Elite content and are discussing an appropriate means to handle the situation. Mythic and Arcane drop chances will not be changing however, we like them where they are at.