There are actually a LOT of questionable things that Pius XII did... Most traditional Catholics don't like to hear about them though as they think of him as the last good pope... I wish I had taken more time to talk about it all in depth with Father Collins before he died... He mentioned it but I was too distracted at the time.
In my continual studies, I have also noticed this.
Not only was Pius XII not exactly ideal, but that, as you say, many traditionalists seem to want to paint him only in the best light.
Does anybody have any good sources on him? Books, articles, etc?
I don't know what to make of PIus XII. Was he simply trying to "play the game," keep his enemies close, and ended up simply getting played himself? Was he just kinda dumb and easily manipulated? Was he just straight up compromised?
On another note, the Palmarians in Spain claim that Roncalli/John XXIII and Montini/Paul VI were actually valid popes. They even claim that Montini was drugged and forcibly manipulated! Given the drama that has been coming out of them, it's hard to take those claims seriously.