On the other hand I believe that many in the east have considered certain eucharistic miracles to be a bad thing related to lack of faith/ belief in the real presence. I think I read about one alleged miracle where the host which bled was a host that was found on the floor of the church. Seems like it could be Jesus saying "look how you're treating me. With your irreverence, EMHCs, communion in the hand and lack of faith you're trampling me underfoot!
I agree. Those with supernatural Faith do not need miracles to believe: "For I am not come to call the just, but sinners." [Matthew 9:13]
And He doesn't perform miracles for those looking for proof of them in themselves like the unbelieving scoffers these days: "And whereas he had done so many miracles before them, they believed not in him:" [John 12:37]
The famous miracle of Lanciano came about due to a monk who had doubts about the Real Presence. You don't see these doubts among trads because the entire movement revolves around there being a legitimate/licit Mass. Faith is present, despite the other problems plaguing traditionalists, there's no doubt about that. We are so divided and combative because we're in spiritual war; the NO, by and large, are not, but lukewarm (generally-speaking) and would merit miracles to try and strengthen their faith.