I've read the GIRM. Some stuff people do bothers me. Some stuff doesn't. Holding hands isn't required. It's also not a liturgical abuse. It's not a hill worth fighting over.
I've talked about my miracle several times (but I believe testimonies like this are evangelizing, so I'm happy to do it again.
1991. My son's confirmation. My brother, his sponsor, flew in, one year after being diagnosed with MS. I, his sister, was heartbroken to see his limp, and his hand shaking when he tried to pour milk into the cereal bowl. During the "Our Father," holding hands with the choir, I felt such a strong presence of the Holy Spirit and asked the Spirit to heal my brother.
He limped up to Communion with my son. As he walked back to his seat, and as he passed by the choir singing the Communion hymn, he straightened up and stopped limping. His remission lasted several years.
He wasn't healed forever, although he still walks, and was able to work until he was 53, but I am so grateful to God for those extra years of good health for him.
So will I hold hands? Sure. I wish I could be an octopus--I'd hold eight hands if I could.
My after Communion ministry, as I am playing the Communion hymn, is focusing on the people in my parish who need prayer. I am situated so that I can see the congregation, and I choose someone who needs a miracle. I hope that those prayers bring some comfort and healing to their lives.