General panic seized all of the demon gods in the great wilderness. They hadn't cared when the connate great dao changed to requiring human form for cultivation, as it didn’t apply to them. But now, great dismay registered upon finding out that the changes were extending to them as well! 

Only in taking human form would they receive the approval of the great dao, which meant that though they could release greater strength in their true forms, they had to assume human form if they wanted to gain a foothold in the great wilderness.

This was extraordinary humiliation for the connate demon gods!

Though humans were descended from the great Pangu, it’d been countless eons since his fall. The human form was also slightly different from the great god’s; ergo, demon gods wouldn't be paying tribute to a legendary creator by taking human form.

No, they would really be only imitating human form!

How was it right, how was it proper that the majestic demon gods were forced to assume the shape of mewling latter-day descendants...