Imperial dispensasion, bypassing peer review of people who have the skill and the phisical ability to vouch and judge Mathilde's request and argument... is akin to asking a king or absolute monarch to vouch a research for (in example) covid cure with nothing but our good rep so far, without consulting an army of medical doctors to vouch for us.
(In that example, any kind of research of virus is forbidden, infear of breakout or weaponsized covid).
Nobody is above the law, but in the instance we do NEED to be above the law (a dispensasion), maybe such step (go for the emperor) is mandated. But i dont think this is the case.
Lets just follow the proper rule to and ask everyone of our peer if this is okay.
If necessary, bring the elves to provide the supporting expert arguments.
I will note that 'no one is above the law' is a very modern concept. The Empire is a feudal hellhole and the law is mostly what the local strongman says it is with precedent playing a weak second fiddle. If you know the right people you can certainly be 'above the law'. Just about the only people who are interested in changing that are certain sects of Verenans who worship the concept of law.