There are many examples of great answers on this site that don't fully quote every verse they reference, like this one and this one.
What makes these generally acceptable? The unquoted verse citations are used as references to support a point being made in the answer. That is, the citation is tangential to the argument, and is there only to make it more convenient for the reader to do an in-depth analysis of the strength of the author's argument.
If the argument relies on the text of the verse, then it needs to be quoted or summarized. Making a claim central to the argument and then saying, "This is supported in Passage A, Passage B, and Passage C," without quotes or summaries or analysis, is not conducive to a coherent argument.
I don't remember the details of the answer you are referring to, so I can't go into more detail than this. But a good argument, whether here or elsewhere, always guides readers carefully from start to end. It never requires them to leave the confines of the argument in order to understand the argument.
Recommending extra resources (like Bible passages) without quoting them is fine so long as they are not essential to understanding the argument.