Odd that; while rituals and forgings should be disrupted by changing items, I see no such reasoning for stealth and research. No item can enable hiding or research, although the efficiency of the latter may be affected by items (still, the game likely checks research points later on, for mages that might have been killed because of events, or similar annoyances).
There is also the fact that if you're casting targeted spells the monthly ritual hotkey is useless, because it will always cast the spell at the same province. Therefore e.g. the radar spells (haruspex, auspex, augury etc) have to be always cast by hand. The autorituals are only good for summoning things like banes, wights, seasonal spirits and so on.
IIRC there is no distinction between special orders. All special orders are disrupted when items are changed. It has nothing to do with stealth or research, nor anyting to do with user frienlieness