I believe you can get duds and magic carpets with hand made and with mass produced.
There are some really terrible cheap nasty pop outs that probably give the decent ones a bad name (J***s and H*t T****e to
'not' name a couple

)
I have been lucky enough to have had 3 local made boards that I loved but I know of people who had some shockers from the same people.
In general I feel people need to keep opinions as just that- an opinion. If you have had an awesome or dud board made from either a factory in Thailand or a garage in the South West then tell the story as just that - don't get all self righteous about your experience and put heat on others for their choices.
I love that there are heaps of boards to try and different shapers doing different things so either way does not bother me.