Anybody who takes a few minutes to look at FallisP's RFF gallery (thanks for posting those, FP) will quickly find there is no close minded-ness. No doubt a lot of experience and in a genre that does, IMO, require extensive "pre-visualization".
I still think that we all pre-visualize (in the sense of the original article posted), we differ in experience, speed, genre, and the desired degree of technical perfection.
You (generic you) do it often, for years, you internalize, pre-visualization and selection of technical parameters become intuitive. Until you can do it all in the fraction of a sec like HCB did (AND SAID HE DID).
Of course, if you simplify, and put less emphasis on focus (a "bourgois" concept) and exposure, "improvise" instead of compose, you can be faster.
If you want high quality landscapes, rigorous portraits, etc., planning and pre-visualization is a must, IMO.
IMO, the problem with the concept here at RFF, FP, is that "street" has become clichee. Planning doesn't fit.
I wish some of the great photographers we have as members, i.e. Todd, Gabriel, one of the Rays, Lzr, Thomas, or others would chime in ....
My 2 cents as amateur.
Roland.