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I would not worry about the Bug fingers bending, that reviewer is ham fisted and has obviously over tightened the tool a lot !!
I used to make these and the Bug hardly ever failed, when the few that were returned (about 10 in 3 years) they were always replaced. When inspected, they had always been over tightened. In single numbers we accepted back Bugs with manufacturing faults where the head unit was badly milled, this did not effect the fingers strength however.
Hold & Folds are instruments NOT clamps, use a vice if you have neolithic hand like him.
All you need is gentle pressure, the reviewer knew that but he still, well who knows why ?
Not now connected with the product
Alasdair