As the dawn of a new millennium approached, many of the people that brought you Bible Codes felt the need to sell more books on the subject of the Spiritual and Prophetic Implications of Year 2000.
If people take a look at my Bible Codes discussion, highly similar things hold true for what both they and I would have to say about the matter.
The authors of "biblically-based" Y2K books "rode the wave" of popular interest in the issue.
The authors do not appear to be nearly as well-studied in what the causes, results, and remediations are for "Y2K bugs" as they are in their particular views on Biblical prophecy.
In contrast, I have a somewhat more technically oriented web page on the issue, Linux and Year 2000 (Y2K), which is one of the most definitive resources on the issue in the context of the Linux Operating System.
I have been involved with various sorts of Y2K remediation efforts going back as far as 1993, when I was hired by a small company called Nidak in Toronto, with duties that included "sunsetting" some systems that had designs that were severely affected at that time by problems due to the impending approach of Year 2000.
The most unusual "date issue" I have personally dealt with was in a program I wrote where analysis indicated that it would have problems coping with dates in years 101, 202, 303, 404, 505, 606, 707, 808, 909, 1010, 1111, and 1212. Note that the most recent of those dates is nearly 800 years in the past, and certainly not of great interest to a company in the airline industry where dates preceding the invention of heavier-than-air flight aren't terribly relevant. While it may not have been a "spiritual" responsibility to document the issue, I felt it a professional responsibility to document it :-).