They may have been drunk, but I still say the major reason was that the bodies were bloody and in bad shape, and also I don't think most of them really knew who was who by name anyway.
It appears that you have forgotten the discussion about how the bodies were not in "bad shape" and "bloody" when they removed them from the icy waters of the Four Brother's Mine.
Let me explain, again, when the bodies were placed in the icy waters it was like Yurovsky's men were placing the bodies into deep freeze and this cold temperature of the water kept the bodies from decomposting at a regular rate.
There is a testimony about how the bodies were in such good shape the victims appeared to be almost alive and in a deep sleep as the Bolsheviks pulled them out of the mine shaft and placed the bodies on the ground. One of the testimonies goes into detail on Nicholas II's appearance.....
The motion of placing them in the shaft's water and then taking them out of the water may have washed the bodies to some degree and a lot of the blood was gone.
According to testimonies: In this icy state the bodies were then taken away on trucks and nine of the bodies ended up on the ground in Pig's Meadow.
Forensic scientists claim if this is indeed what happened to the bodies, then they were in good shape and not bloated and out of shape so they should have been able to tell the differences between 40 year bodies of two women to that of the younger women's bodies.
Since I'm not an expert and only watch CIA and listen to my DA friends, I do not doubt the conclusions of the real forensice scientists and what they have established.
The rifle butts were not used on the faces until just before the nine bodies were placed in the grave.
Remember, there were no rifles used during the execution, only pistols. See testimonies and evidence of bullets found.
The nine bodies were then placed in the mass grave....
AGRBear