Your mirthful barb at GW was strategically brilliant,witty and flawlessly incorporated into the flow of narration! You dear Sir are truly an artist of many stripes,thank you!
The emperor is known to have changed his physical size (or its perception I can’t remember) so theoretically he could have the biggest one if he just felt like it.
OPINION ABOUT MY LORE: Would you like to see a return of the Old Ones from another galaxy from a closed Webway portal? What if the lost primarchs are there too?