I'm looking for actual arguments against Révay's statement that the Virgin Mary was on the Crown where now Michael Doukas is.
It does seem to me that up until the these years (maybe to 2017) there isn't any actual evidence were presented only speculations why he could mistake those two person, so basically those researchers who believed the authenticity of the Doukas icon and cared enough to spend some words on Révay, they tried to make up stuff to invalidate the contradictory evidence what Révay's statement means in relation their Doukas theory.
Only very recently was found something concrete, however I wouldn't bet my life on this either. So before the coronation of Mathias II (1608) the Crown was held "captive" in Prague by the Habsburg, until the new king-elect ordered to it's return to Hungary. On this occasion was Révay selected to be a crown-guard (with another) and he could examine the Crown both before and after the coronation. Then after this event during the coronation dinner it was displayed publicly many could walk up to it and check it out. Based on this muster one observer did make a drawing but it was lost for a long time, only was recovered recently and this new team of researchers could take a look at it. According to them while it is very faint they could make out the outline of a labarum the figure in question is holding in the hand, which cannot be an attribute of the Virgin Mary, but Doukas has one so it can only be the emperor.
I couldn't find the actual picture - maybe they published it in a book, I hope so - but it might be a wishful thinking on behalf of them. I found another interesting detail about Révay's observations...
In the first edition he mentions he noticed Greek letters on the crown and in the extended edition he says that on one icon he could spell out the letters KON, and based on this he recognized emperor Constantine I (the Great) in the icon, who gave a crown to pope Sylvester I, then later this crown was given by Sylvester II to our king Saint Stephen.
Now, if he observed well enough to recognize Greek letters, and he understood that one dude there is a Konstantine (albeit his conclusion, which Konstantine he is, is wrong), and it was obvious to him that this guy is an emperor, how could he confuse Mary with another emperor?

Picrel is just a fantasy how a supposed Virgin Mary could look like. Also there are some other info which might worth for me to check out.