Eurobricks has 774 LDraw models of official sets listed. Meanwhile, there have been few OMR compliant models posted here, with plenty of back-and-forth about the correctness of the ones that have been. The numerical difference between the two venues is more remarkable considering that Eurobricks is very heavily biased toward LDD.
So the answer to "What would has happened if there wouldn't have been a minimal standard for parts" appears to be that there would be a substantially greater level of contribution and a lower level of perfection.
Allen
So the answer to "What would has happened if there wouldn't have been a minimal standard for parts" appears to be that there would be a substantially greater level of contribution and a lower level of perfection.
Allen