Interesting perspective, clearly coming from someone who has spent most of his career in a two-pilot operation.
But that's not me, nor do I share your viewpoint on logging things accurately. I find no embarrassment in correctly logging time as detailed in 61.51. Especially because, for me, most of my previous PIC time is single-pilot, doing both stick-wiggling and "signing".
I just did some quick logbook math. Approximately 88% of my pilot time so far has been in single-pilot airplanes. So, to me, "logging PIC" is essentially synonymous with "stick wiggling PIC", i.e. 61.51e(1)(i). The remaining, and most recent, 12% is in a 2-pilot crew where the issue of signing PIC (61.51e(1)(iii)) vs stick wiggling PIC comes up.
In other words, like everyone, my opinions and viewpoint have been shaped by my experience, and to me, the main factor in logging "PIC" is "who flew the plane". I can't imagine I'm alone in this. In fact, as that definition is listed first in 61.51, it seems to be the primary factor regulatorily as well.
For someone like you, who spent most of his career in a two-pilot operation, it's clear that you consider the primary factor for logging "PIC" as "who was responsible for the plane".
Your derisive wording aside, I am of the opinion that both viewpoints are perfectly valid and supported by 61.51, and again, I find nothing embarrassing or laughable about following the regulations. I'd expect a "pro" to know the regulations.