I don't know much of Warhammer lore, so I had to look up tech priests:

"No longer the master of its creations, the Cult Mechanicus is enslaved to the past. It maintains the glories of yesteryear with rite, dogma and edict instead of true discernment and comprehension. For instance, even the theoretically simple process of activating a vehicle's engine is preceded by the application of ritual oils, the burning of sacred resins and the chanting of long and complex hymns. "

Its clear to me the author of this block of text was having trouble starting his vehicle's engine, and was pissed off when he/she was asked to put in a ticket before help would be rendered to the him/her.

If you’ve never read it Vernon Vinge a fire upon the deep had a type of programmers in the future known as programmer archaeologists. The tldr is nobody wrote new code just dug up old code and bolted it together. I used to think that was silly, after llms lately and dealing with interns I no longer think of it as fiction.