Of course, it is bad at some degree. If I, for example, see unexpected chaos scale in the province, I may be sure that there's a nature or (more probably) fire site in the province. Also, I know that it is generally not worth site searching with more than level 3 in some schools because chance of finding anything valuably is pretty low. With new modded sites it becomes unpredictable which I generally don't like. I have nothing against this mod as well as any other (CBM, for example) but to play with it effectively it needs to be learned and I don't want it at the moment
I prefer playing with site rate of about 50% in any era but if you don't want it, so be it.