I know what you mean! We have a perpetual adoration chapel attached to our Church. If a person wants to spend some time with our Lord, they can sit their behinds on a chair and pray. You don’t have to go to Bosnia for crying out loud! I dare to say that if a persons faith absolutely requires that an apparition of Our Blessed Mother be legit, than they need to pray for more faith!
I’d think that a strong faith in the Lord would include being able to distinguish characteristics of a phony apparition from that of a real appearance. You are right, a faith that’s focused around saints rather than around God would be the proverbial tail attempting to wag the dog. And it’s nice to visit a place of spiritual significance if you have the option and you have good reason to believe that it is truly a holy site, but an omnipresent God can minister to you anywhere you are.