That point's really moot because the 44 year old kit is virtually identical in size to the 30 year old kit. They both got it good enough (or wrong enough) to be basically the same size. The argument was that the kits were of different scale and that the Monogram one was bigger than the Tamiya one.
As shown in Stikpusher's photos, the kits are identical in size and both of them are listed as the same scale. You could probably make the argument that the Monogram kit that was argued to be the larger scale actually appears marginally smaller than the Tamiya kit which should have been smaller of the two.