Well, at least some of the time.
The shooting and self-defense community is blessed these days with all the Tier 1 SF guys retiring out of service with a decade now of intense operational activity, often in close-quarter urban combat. This military experience is probably the most relevant to what we as civilian self-defense shooters may need to do, although of course there are some big differences (to name two: these guys works as a team while we’ll be defending ourselves alone, and their ROE are quite different from ours.) The fact that so many of these guys are now teaching civilians is a real boon to civilian defenders, and a reality check on the material that’s being taught out there.
But I often ignore what these heroes teach…and also I often slavishly adopt what they teach. Here’s what makes the difference: If a Tier 1 guy –a genetically gifted, full-time trained for years, product of the most competitive selection process known to man — does something that’s high speed or requires some real talent or coordination, I have to realize that I am not a genetically gifted, full-time trained for years, product of the most competitive selection process known to man, and I may not be able to to that, especially under stress. So I evaluate the technique critically in that light. I may adopt it or not, but I need further data and analysis before doing so.
On the other hand, when one of these rare talents teaches something that assumes rock stupidity or great fallibility (under stress), I say to myself, “If this guy dumbs things down to this level, I damn well better, too.” A good example here would be Paul Howe’s insistence on putting a safety on every time a (rifle, or pistol) isn’t being fired.
There’s a reason these guys worked in the units they did and you (and I) didn’t.