What people think is quality and what is are not always the same.
Modern building codes make the cheapest houses much better than the best houses from 100 years ago. Nobody knows how to see insulation so they don't count it. Old houses often overbuild some obvious beam and so that part of the house is very strong, but some other beam wasn't strong. Yes old houses had access to old growth trees that were stronger, but that doesn't make up for good engineering.
Modern building codes make the cheapest houses much better than the best houses from 100 years ago. Nobody knows how to see insulation so they don't count it. Old houses often overbuild some obvious beam and so that part of the house is very strong, but some other beam wasn't strong. Yes old houses had access to old growth trees that were stronger, but that doesn't make up for good engineering.