To date, players have gotten used to the way Command and Habits function in the game, and how these interact with stats and with other dragons. Consequentially, players have made investments, or varying scale no doubt, but investments nonetheless based on how the game currently is.
While I am grateful that the development team is actively taking efforts to enhance the game through the mooted changes to dragon habits and commands in particular, I urge the developers to keep close tabs on the implications of these changes on the value of existing investments made by players. The easiest example given current information is Zivern, for whom a big draw is his ability to increase the activation chance of others commands. He’s accordingly heavily recommended to all new players, who then invest in him. Should the upcoming changes affect the value of this habit, say by increasing activation rates across the board, players aren’t receiving for their investment of up to 1,150 epic cores what they expected.