World Add Boss Altar telegraphs

In combat content, there are raids and lootrunning telegraph that tells you what you need to do in order to finish this challenge. But for some reason, boss altar still doesn't have telegraph to tell what the heck is the boss doing, which bring players frustration when doing them.
The two example are the Orange Wybel and Geyster Pit boss altar. They are seeming to have a survive section/special way of damage between the boss phases, that the boss cannot be damaged by the player during those phases. But apparently, there is no information of telling us what to do during those phases, which is very frustrating, making players by either just standing there, waiting the boss to be out of the immortal phase or /kill to end the fight.
Although how telegraphs, especially raids telegraphs are displayed is still far from satisfactory, they are at least still there and some players will actually read them to know what to do. So, why the heck they are not yet introduced into boss altars? Did they literally forget about its existence?
P.S. this is also applicable in some of the caves, such as Haze Maze cave in Silence Expanse, which the first part of the caves is a survive section but have no telegraph on saying so.