The post Goshin ridiculed was probably making an obscure (read: poorly worded) reference to the early days of the Catholic church, however even then the Church was not that indiscriminate with righteous reprisal. If one was a believer, one willingly paid for tithes and indulgences and was embraced lovingly (or at least indifferently) by the Church. If a person was a nonbeliever, they might be labelled a heretic and then they could murdered and their property seized. Wasn't that in part the rationale of the Crusades?
Of course, he could have also been speaking more broadly, since the similar violent lust for money and/or power is evident in any historic "holy" war. Religion is often the guise of politics, and sometimes very poor one. Henry VIII's looted monasteries and probably used the immense wealth gathered violently from that "reformation" of the Church to fund later military exploits, like the second conquest of Ireland. Many heads have worn the veil of theology, but beneath its curtain, many eyes have also gleamed with greed.
And many churches today still seem to retain their interest in power and money, even if their power mongering today is nonviolent, by means of politicking alone. Modern televangelists are a cliche for this new, domesticated version of the same historical lust, as they are always praying upon their audiences for money. (pun intended).
I suspect his concern, however inarticulate, was to emphasize, that despite the firm grip rationality has over many developed societies today, we are still the same breed of people that once willingly sanctified brutal violence with the righteous conviction. And for many others, righteous intolerance is simply the mask they wear for other purposes. And it could happen again, at any time, anywhere.