BioWare have been struggling with several controversies regarding Anthem ever since its release with the stingy loot system being one of the latest. After community outrage, they have decided to tune up the numbers and let people loot.
BioWare had a bona fide boycott on their hands during the week that started on 11 March 2019. It happened because players were extremely unhappy they were not getting satisfying loot in a game that is supposed to be a looter shooter. The issue didn't blow up overnight, as fans have been trying to get BioWare to reverse the loot bug that increased drop rate ever since they fixed it, as the actual bug made the game more enjoyable.
It seems like they finally decided to listen to the community's wishes and released an update that should increase Masterwork and Legendary drops across the board. The update went live together with the announcement, so players can already test the new drop rates, if they wish to do so.
The drop rates were adjusted for harder enemies at all difficulty levels. These enemies include Legendary Ancient Ash Titan, Elite Ancient Ash Titan, Legendary Fury, Legendary Ursix, and Legendary Luminary.
Other content will see better drop rates only on Grandmaster 2 and 3 difficulties. According to BioWare, the revised drop rate will be available in all activities, including Strongholds. The response was such a welcome sight for Anthem community that it became one of the rare cases of a BioWare employee receiving gilding on Reddit lately.
According to another response in the patch thread, the drop rate change will not be an insignificant one, as one user suspected, as the changes should be "pretty significant".
On the flip side, BioWare didn't state the exact drop rate percentage improvement so there is no knowing exactly how much they improved the drops but this omission should not be mistaken for opacity. Disclosing exact drop rates in a loot-based game would both remove some of the suspense and pose problems if some players got unlucky, suggesting the company released wrong numbers in the process.