That's an option that would, again, require the law to be changed by that selfsame Council of Peers.
To be plain, Adrian; at some point, the Council's fear of the Precept Arcanum must be addressed, and to do that, we must weigh something on our side of the scale that will be heavier than that fear. Our political position at the moment might be better than theirs, but I suspect the reason the Precept Arcanum is maintaining its position is twofold.
First, this country has no countermeasure against the War Wizards of Cormyr. They are not as terrifying as the Cowled Wizards of Amn, but they are rather far-famed, and Arabel's war of secession was, I understand, only narrowly won. It's not my own preference to put a body so untrustworthy in control of the country's magical defense, but they are all the country has at present.
Second - they are untrustworthy, and I suspect the council fears that removing their powers and disbanding them all at once might lead to open conflict in the capital and there are other nobles that would take immediate advantage. All a certain Duke needs at the moment is an excuse to march south, and I heavily suspect he would use the churches of Cyric and Talona, both powerful in their own right, to assist the Precept Arcanum - whom he has allied with - in 'restoring good order.' That is also probably the reason that the Arcanum has chosen not to interfere with the rats in the sewers; they're hoping the situation goes so out of control that their allies in the Talonite church and in Tilverton will support a change of regime.
I agree with you. The Precept Arcanum are incompetent at best, and frankly treasonous at worst, but we must dismantle them in some other way. I do not envy the Queen. I think she speaks and acts wisely in judgment and in council, yet there are limited options. We can't just write them away with a law we don't yet have the political or martial power to enforce, so we must work with them, at least, until we can raise or find more powerful support for their removal.
Forcing the Precept Arcanum to take on more codified responsibility that we know they aren't capable of achieving or intending to perform just makes us look better, and them look worse. I doubt we can disband the Arcanum, but I would like to suborn them and force them back to their duty. I think we've enough clout for that.
//Jasda al Tyr//