Why does it bother you Joe? The Brits have been doing this for a few hundred years. About time we caught up. And for your information its not just gunsmiths who do the here. The first batch of Ithaca Mag 10s were not all made in house. Winchester ribs on their early guns can be debated as being in house or farmed out. Ruger tried out sourcing finishing on their guns at one time. Colt lost the ability to case harden and had to farm it out while they got back into doing it themselves.
So a gunsmith farms out welding or sone other task. Who cares? Some of these special welding setup are amazing. But who can master everything. Id rather have someone in overall charge getting things done to a high level than just doing everything in house to a lower standard. Same thing with engraving. Send it out if need be. No one thinks twice about that.
