"Entity is not omnipotent but could probably escape imprisonment if he tried. He is shocked that his creations came to life and depressed/confused that some of his creations would actually act in an evil fashion"
HE LITERALLY CODED THEM TO BE BAD GUYS.
And even if he didn't i imagine they'd be pretty triggered that he coded it so
That people get stronger WHEN THEY KILLED THEM ... WHEN THEY KILL THEM