This post will focus mainly on the changes presented in the media tour and possible changes that would allow Black Mage to feel the best it can be! But I will start with why players are upset.

The reason players are upset is due to the rigid nature of the updated rotation, and the removal of the MP regen as well as Ice paradox. These changes have fundamentally changed what BLM is allowed to do outside of the standard play, known as "Non-standard".
Non-standard has been around for a long while, but EW allowed non-standard play to really stand out as an alternative way to engage with the job in certain content, such as savage and Ultimate. Non-standard play was a massive benefit for not just the BLM players, but the community at large, for allowing BLM to no longer rely on the party to adjust for them in a majority of situations. Non-standard allowed for uptime while certain mechanics were in play, preventing typical standard play. Certain fights would see BLM at a massive disadvantage in fights like TOP or p12s, where standard play is not easily done without massive risk and party adjustment. Most players play in Partyfinder and do not like to adjust for a single caster.
Speaking plainly, Non-standard was not developed by design and is akin to a good error. Understandably, the team would want to keep BLM in line with the intended design to make future development easier. I believe that the team should reconsider their design stance and attempt to allow a design that keeps BLM's simplistic rotation with the ability to be flexible via multiple different options, and these options should be weaker in potency I can agree with the devs on that.

Due to the character limit, I have to spread this into multiple posts.