I think her point is that while it does happen, it isn’t always REAL and we have to look at the FRUITS. Even when the Church investigates miracle cures, apparitions, etc, they have to make sure they weren’t caused by something natural.
She has a right to judge what happened to her daughter. Even if she wasn’t there, she knows her daughter and her daughter’s spirituality. If something happened that doesn’t seem to match up, she’s going to be skeptical.
I got very emotional at a prayer service one night and felt the same symptoms. Reason? I just got back from the Papal Mass earlier, which I had to get up at 4 AM for, and I was so excited the night before that I didn’t sleep much, and I hadn’t eaten much that whole day. I’ve also felt the Spirit move in other prayer services, for reasons that could only be God.
As for being discerning over spiritual practices, it’s a good thing. There are leaders who know how to whip people into a frenzy, which is frightening and a cause to be vigilant. Also, it isn’t for everyone. You don’t need to speak in tongues to be a good Catholic. What worked for the Apostles doesn’t work for everyone. Some people are drawn to Charismatic services, others to more contemplative.