That's a confusing suggestion. First of all, Rogue isn't the granddaddy of every CRPG ever. Rogue is predated by similar, non-random games like pedit5, orthanc, dnd, oubliette, etc. Rogue's innovation was the random dungeon generation -- something that largely does not exist outside of the roguelike genre (or cross-genre games like Diablo). It's true that Rogue was very widely played, and very influential, but most CRPGs owe far more to Ultima, to Wizardry, to Dungeons of Daggorath and Dungeon Master, to Wolfenstein 3D, to DikuMUD and the Shadow of Yserbius.