网友对句子结构的理解是错误的。书上的“解析”也是错误的。原句如下：

So, too, in their time had the humanists thought that the study of the classical authors in the original would banish at once the dull pedantry and superstition of mediaeval scholasticism.

本句的部分倒装没有错误，不过had humanists thought部分倒装和状语in their time没有任何关系。引起部分倒装的是句首的表示“也”的so too.

so too+部分倒装句可以呼应just as方式状语从句，也可以独立成句，与前句构成呼应关系。

以下为COCA语料库so too导致部分倒装句的部分例句：

Just as Carrier threatened to move jobs to Mexico and promptly received a tax break, so too did Sears receive millions from Illinois to keep its headquarters in Chicago back in 1989.

And, as I said above, government can and should help on this front as well. But then, so too should businesses -- the entities that, after all, end up paying for much of the healthcare needs of tens of millions of Americans.

 Just as the racial resentment of a white southerner in 1870 was fueled by the prospect of being arrested by a black sheriff and tried by a black magistrate, so too might we understand present resentment politics as reflecting concrete local anxieties as much as, if not more than, abstract national politics.

 Furthermore, in addition to facilitating task coordination, the temporal regimes can serve as a form of discipline. Colonial administration of the Andean region entailed the imposition of systematic work habits (Salz 1984) and factory owners in Nash's (1967) Guatemalan factory forced Mayan laborers to learn punctuality by locking doors following a morning whistle. So too can we envision time management as a means of regulating bodies and populations, a disciplinary technique for enforcing compliance and distinguishing the deserving from the undeserving.

 Solely because of the similarity of the white maiden's portrait to his first wife's appearance, the king in " The White Bride and the Black Bride " resolves that the white maiden will be his bride, and his resolve prevails against the black stepmother's attempts to pass her black daughter off as the white bride, because unlike the black stepmother's disabling magic, his authority proves regenerative: even his cutting-off of the white duck's head leads to regeneration. So too does the prince in " The Prince Who Feared Nothing " fear neither giants nor blindness nor the startling sight of the black female nor the devils who beat him unconscious; instead, his fearlessness enables him (with the black maiden as nursemaid) to overcome any and all threats, and in so doing, he enables the black maiden to become white and marries her.

 In this instance, " our own " seems to refer to Wales and the Welsh, as distinguished from the chubby English and the angular Scots. So too does Morris's later usage of the phrase uphold the notion of " our own... quarter of the island " as referring to an exclusively Welsh identity (Peter's Letters 47), in the context of a comparison between Scottish political restiveness and Welsh docility.