No really that surprised.
I was in one of the local cobblers here in Brisbane (Australia) a few weeks ago.
He had a whole stack load of cricket shoes he was sewing for one of the cricket shoe conversion podiatrists. These were already cricket bowling shoes that they had stripped the stock soles off and put on hard wearing soles that were glued and then stitched.
The guy told me apparently they were for an international team.... They were about size 15+ so maybe they were were for the West Indies.... lol
Anyway this was taking $150 cricket shoes and spending another $150+ to get them to the high impacts of fast bowling.....
At the end of the day, most softs/shoes/clothing are generally made by the lower/lowest bidder, so you would generally expect to see some faults.