SableWyvern
Hero
As best I can tell, the assertion is that in order to qualify as a True Crime RPG, the game would have to exactly follow the historical events, with no allowance for dramatisation, alternative theories or anything that diverges in any way from the known events. Assuming such a narrow definition, it is certainly true an RPG wouldn't be possible, because you are completely disallowing anything other than a series of predetermined actions.I legitimately don't understand your problem with this. If it was just a fictional murder mystery, it would play out exactly the same way. It being true crime has no bearing on how the investigators would explore it versus if it were fiction. You are asserting a distinction with no difference.
Why True Crime gets this special treatment, but other historical settings and games are OK (or movie, book or TV adaptions for that matter), I have no idea, but if you do define a genre so narrowly that it is not possible to do anything but follow a predetermined script of events, they're certainly correct that it won't work as an RPG.
I find this line of reasoning similar to suggesting that the RPG medium is not really suitable alternative to instructional videos. "The RPG in which you learn how to draw horse (now with the "Advanced Aquatic Mammals in Watercolours" expansion)," would probably not work any better than "The RPG where everything you do or say is determined in advance so that a historical crime plays out exactly as it happened in history."