1992,1992 Acura Legend, when the timing belt goes, is it common for the valves to bend?

I brought my 1992 Acura legend to my mechanic because the timing belt went. He called me a week later saying that when the timing belt went it bent my valves. He also told me this is very common for this car. I'm just looking for a second opinion. This would be the second time the timing belt has gone and I don't remember the valves being bent when I had it replaced the last time 8 years ago. The car is low mileage for the year, only 153k miles for a 1992. It's not driven hard either. I already purchased the timing belt, seals, water pump, and thermostat. How much should I be look