I think this post should be under the forum for House Rules!
I understand your interest in the OM, and in your own proposed variants of the game. However, the simple fact remains that LHTR does indeed represent the most commonly used rule-set for online gaming.
The reasons for this are multiple and compelling, such as the massive amount of errata in the box rules. “SBR’s do the roll of the die or the IPC value of the territory, whichever is GREATER” [emphasis added].
It also corrected the dreadful rule combination that almost guaranteed an Axis win on G1 by allowing for Sea Lion supported by all 6 initial German FIGs.
That last example alone… making the outcome of the game dependent upon the roll of 6 German tech dice for LRA, with automatic Axis win if the odds prevail and Germany rolls a 1… is more than ample reason to scrap the OM and use a superior rule set.
And while we admire the work being done elsewhere on these boards for a new and more realistic rule-set, in the interim we go with the best rule-set available, which also happens to be the rule-set used by almost everyone else playing online.