Norm, let rephrase correctly.
The critics' "physics" tends to be real physics, the "physics" of MD tends to be zero factual basis and believed only by the ignorant and gullible.
The ignorant have little problem believing MD (lack of) physics as they have no understanding of real physics. To them, sound tweaks like audio cable and total snake oil like pebbles seem to have the same factual basis. They are the individuals that folks like GK can exploit. You, Jim and a few other folks demonstrate a high degree of lack of understanding. Even now, you probably do not have a good understanding as to why some power cables may improve sound.
Once understanding of the physics behind tweaks is achieved, it is very easy to discriminate between what will work and what is placebo. There is no black magic in audio ... there never was, there never will be and the sure isn't any now.
The fact that you think that some aspects of physics is in some way out of date demonstrates a total lack of understanding of what science is about.
Regards
Paul