I'm curious how much longer it takes to attach this device to the pipe instead of simply welding it by hand.

Also, what will happen when the automated welder starts having issues because some slag got into the gas head (where the inert argon is released) and the welding quality tanks? There needs to be a skilled laborer that knows how to fix it, and it will massively suck if your entire business which revolves around metal being welded together has to stop for 2 days until some specialized worker has to fly in to repair your device, all because no one you employ knows how to weld by hand.