No, if they had accepted the default, they wouldn’t have had the opportunity to present any evidence. And they wouldn’t be able to appeal.
The two plaintiffs who stipulated were arguing the definition of NBC. The BC was relevant to their case only in that it legally established Senior as Junior’s father.
They got it right, procedurally.
They goal was to take the judgment and keep him off. the court case default would have been the presumption.
The defendant has to set it aside and THERE is where the evidence is argued. The lawyers for the plaintiffs don’t know what they are doing.