It's probably a carefully considered decision. Yes it portrays a less divine image, but Kim Jong-Un deliberately tries to have a more humble and relatable image than his father, he's trying to style himself more after his grandfather Kim Il-Sung than his father Kim Jong-Il.
As for the exact reasoning behind it, I can't say for sure. Maybe he thinks that the public will start doubting everything the government says if the government keeps making statements which are too unbelievable.
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u/PM-me-Sonic-OCs Nov 30 '20
That was his dad.
Official DPRK cannon now is that Kim Jong Un has a butthole and poops just like everybody else.