Leaf springs altered - is it OK?

Recently I had my Bolero serviced, and the mechanic had used a spanner to put some space between the leaf and the clamp holding it in place. He said "otherwise the leaf would rub with these parts and you will hear a lot of squeak".



It kinda made sense at that time, looked as if it was a preventive step, but now I am wondering, would that extra space be a problem when taking a tight curve with 5+ people on board, would the leafs shift, move around, cause permanent damage!

Or is this some regular thing that we do in Boleros/Jeeps. Could the long term owners throw some light.