I fully sympathize with you Thonos, sadly the way CM and the Praetorium were designed meant players quickly realized they could farm them quickly for tomes, thus starting the whole 'skip everything and leave newbies behind in the dust' mentality. Unfortunately, there is no way to combat this other than trying to run that with friends who will not rush ahead and will wait for you while you watch the cutscenes (both dungeons can be run by a single level 70 player unsynced easily now, so if you know someone high level who is willing to take you through it and let you watch the cutscenes, that is probably a better option than dealing with DF speedrunners.).

SE learned from this mistake though and luckily later dungeons/fights are not like that. But alas CM/Prae were left as is.