Turning the Brotherhood into an actual fanatical cult instead of just a bunch of technophiles in Power Armor still has to be one of the stupidest things about this show so far. You would think even the most casual observer would know what Brotherhood is supposed to stand for, with Todd shoving them quite literally everywhere he can, but I guess not. Hell, there is already a fanatical tech worshipping cult in the canon already, as a matter of fact they're rivals with the MidWestern branch for a bit in Fallout Tactics before, ironically enough, the real villain of the game (Vault Tec) forces the two into an uneasy truce.
https://fallout.fandom.com/wiki/Reaver_Movement You're telling me these morons couldn't spend 5 whole minutes on the Fallout wiki to look for some inspiration or check if another faction already done this angle?