Job changes should not be based on trying to get more people to play them. If people don't play them now, then it's because they don't enjoy the playstyle or they feel the effort put into it isn't worth it, and changing a job's playstyle to make more people enjoy it usually results in something extremely boring.

MCH and 5.4 MNK are the #1 examples of that. While it's easy to argue that they had self-detrimental mechanics that needed to be removed, to make them an empty shell of their old playstyles has been really awful for the people who mained them before the changes. Especially MCH, which has few buttons and no unique gimmick outside of spamming heat blast every now and then. It alienates the people who had already been actively playing it. People who have spent time learning it, perfecting it, taking it to harder content, gearing it, and optimizing to the best of their ability should not have that effort reduced to nothing on the turn of a new expansion now that they have to either relearn it or find that it's no longer the job they used to love.

Job changes should be made with its current dedicated players in mind. Make it more enjoyable for THEM. More people will come around naturally if that happens. That's why people enjoyed BRD back in 4.x; it wasn't any harder or easier to play than it is now, it just had good results for the effort that was put into it and therefore made people happy to play it.

Unfortunately I'm beyond afraid that this is what they plan to do to BRD and, to a lesser extent because of its current issues, SMN. Jobs should not be gutted or homogenized just to appeal to people who never liked them to begin with. If BRD is gutted then phys ranged as a whole becomes an extremely boring role. The way to make more people play a role is to make its current players enjoy playing it more. That way, they talk about how much fun it is and inspire others to try it out.