I have repeatedly seen it argued (recently) that older editions of D&D are more realistic or historically accurate than newer editions (D&D 3x included) or simply realistic. This was, in fact, a common claim regarding older editions of D&D and both AD&D 2e and D&D 3x. It seems to only come up around edition changes, though. At every other time in the existence of D&D, the game is loudly decried as being a miserable simulation of anything, except perhaps, certain fantasy worlds.
As stated above, yes, I have seen this. I've also seen it argued that past editions have a heavy focus on simulation, period. That said, I have yet to see any examples that clearly illustrate any given edition's adherence to historical realism or the modeling of physics past the fallacy (mentioned above) that because X edition does it another way, Y edition is inherenly realistic. Without examples of how X edition is inherently realistic, it's a pretty a hollow claim.