Akatosh is the creator of dragons and the dragon fires that keep the daedra in the planes of oblivion. Keep an open mind and active imagination. Those who would say this is incompatible with the lore I would disagree with you. Makes killing dragons more rewarding and interesting. In my opinion, this option keeps a balance to the game. Dragons will drop daedra hearts like dremoras (one for every dragon slain).
The alternative file adds the ability to loot a single daedra heart from a slain dragon. She still has a vast inventory but it has been altered. What you lose is all the other rare items Arcadia would carry. This mod should be fully compatible with any other mods out there unless it changes any files for Arcadia's chest. As I said I dont really understand modding and this mod may have bugs (I have not encountered any so fa)r.
It also increases the chances she will have them in stock. Instead, it makes Arcadia of Arcadia's Cauldron in Whiterun carry more daedra hearts (7 total every two days). This mod dooesn't add more daedra to the game as I have no idea what I am doing with the creation kit. What Skyrim is missing is more daedra to grab those damned hearts.