Well, you come from yer experience base, and truth to tell yer thinkin deficiency anemia is probably normal to dat base.
You go look dat picture I posted where da cake decorator went wild wid de hotglue gun, you see where yer idea 1 little defect don't matter fails ta slice de mustard.
Dat assembly of stukta dat looked pretty started unzipping at weakest spot, and once zipper got movin it all come unstuck.
Looks like dat behind de desk experience never had you up close & personal wid a load gone wild either. Best case de falling load stay in one lump before hits ground and after. Forklift rarely best case. Good way to handle material, but generally material held on pallet by gravity alone. Same bunch number guys you hang wid probably got number splains how a buck worth of shrinkwrap or bands not justifiable due to several factors and dat buck better spent in bonuses. From where you guys sit it makes sense. You on de job site yer experience probably not let you see possibility cube of blocks gonna take down scaffold dat gonna hit something else gonna fly and hit Bob just below hardhat as he comes out of blue wart.
On de good side you do recognize heat signature on de weldment is an indicator of deposit quality. Ain't everything, but it a start on education road. Better picture is probably looking at heat picture as weld is being deposited. Best gonna be cut it, polish it and develop it for true story of penetration. One de worst things bout wire welding is deposit of cake piping can look like good weld. Again, look de picture I posted, piping looked real nice, but separation proves piping not even connected to adjacent piping by nothin but stukta.
Again yer viewpoint on first line manufacture is based on where you lookin from. Big yellow in Peoria shipped hundreds of tons of stukta components since 'engineers' lookin at screens had lunch wid bean counters lookin at more screens and decided MIG is best bang fer de buck. Der track record on hydraulic cylinders alone proves engineers don't know much bout welding. Maybe dey engineered cylinders for maximum replacement.