Milton is alluding so unashamedly here to Spenser's Errour because, I think, on some level he wants to brand Spenserian allegory as an erroneous literary practice.

弥尔顿是如此厚颜无耻地引用斯潘塞的“错误“因为，在某种程度上他想标榜斯潘塞的寓言,是文学上的一个错误尝试。

耶鲁公开课 - 弥尔顿课程节选

A lot of chutzpah in that passage; he hasn't seen any real war yet.

真是厚颜无耻啊,他都没见过真正的战场

耶鲁公开课 - 美国内战与重建课程节选