To use an argument from "Animal House" . . .
If a barrel from company A is bad and therefore company B produces bad barrels one can assume all barrels from country X are bad. If all barrels from company X are bad then shouldn't it be assumed all barrels are bad. Thus the single failure must condemn all black powder barrels regardless of type or manufacture. . .
Yes, they care about the quality. They do not sell them at 100% profit, in fact it is a small percentage. Considering each gun is taken apart, lock made to work, and vented saying they are not inspected is foolish. Some are stained some aren't, depends on the importer. Those that are are taken down to bare wood and refinished. For years Veteran personally proofed every gun they sold, this was to insure quality control not as an official proof stamp.
Yes and no. They are filling a void where there is no competition. I would love to see other options. Most who have and use them are very happy with what they have for the price. Many are frustrated they are so cheap and seek to discredit them while providing no alternatives. Sort of like a cheap car next to an expensive, they both get you where you want to go but one is far more comfortable. Only with these guns it's more like cheap car or no car.