With a destroy power conduit?
What´s the point? The catalyst tells you that it´s a stupid idea in his opinion and organics will be wiped out by synthetics in a few generations. Is it there so the catalyst could see, if the stupid monkey wants to blow up every synthetic in existence anyways? If he wanted to know that, he could simply design a fake destroy button and you hear "You got pranked" after you push it.
I find it hard to get riled up over a law that was retconned into existence. You are openly talking with Anderson in front of Nihlus at the begnning of ME 1 and Nihlus mentioning diplomatic benefits, not "it´s the law you stupid monkey." Then we have Feros, where a company that is specialised on exploiting alien artifacts on a prothean world. They don´t seem to have council overseers in case they find something. We have Liara hoarding prothean stuff in her apartment without the spectre or the police saying anything besides "expensive taste." Let´s not forget the archive where we see zero council researchers in case the Alliance neglects to mention a discovery in one of the biggest finds ever.
Then we find an obelisk of Karza, The Volus mentions a prothean obelisk, which could be useful and a whole bunch of other stuff like datadrives and so on which suddenly appear in larger numbers and no one says to "please keep quiet about it" or so. Don´t know about Bryson´s prothean tech lying around, perhaps he had a permit for it.
Seems to me this law just popped up before Thessia and that´s it. There was a ton of prothean artifacts lying around during Shepard´s journey.
Tevos could have simply said that the Asari have this beacon that helped them in their technological development like the martian archives did for humanity. After the Reaper invasion their scientists looked into it and they think they found something valuable but they can´t gain access to it. As these things tend to react weird when Shepard comes along, because of the Cypher, she suggests that you go there. But uh well, it doesn´t fit the theme of the mission, dirty little secrets of the Asari and protheans.
May be not as exciting as getting all hyped up that this thing will win the war, before we ever get a look at it. For all we know it could simply transmit the usual message from Ilos after all. It´s a beacon, we´ve never seen a beacon doing anything else and the asari sifted through it for thousands of years probably.