ASTRO is amazing job - it is by far the hardest healer job to master because there are so many random and quick decision thinking you must do. Hence you see so many complaints because this is not a straight up pick and play healer like WHM. My Astro is not yet 50, but I can contrast and compare the bad astro and a good astro when I play as tank on lower level dungeons. Astro tools below level 50 is extremely OVERPOWERED for a healer, but you can clearly see the shitty Astro overwhelmed itself with the myriad quick thinking they have to do on lower level dungeons. Stone Vigil and Dzaemel Darkhold is a good example. I am not surprised the SE team is taking a slow approach to fix this job, since on a seasoned player's hand, ASTRO is totally fine, and should the luck is on your card's draw, the benefits can be quite nice.