I think that's a bit rough - for many, many years Vans has had their QB's assembled in (from memory) the Philippines- including mine! AIUI, they then started a new partnership with someone in South America, and I believe (but am not positive) that that is where the primer issue came from - not their long-established Asian partner. Apart from a few rivets that were a right prick to do when installing a canopy bracket after the fact that, IMHO, should have been done as part of the QB assembly, there's been little-to-no issues until the QB-primer one reared its' head.
Again, that's a bit rough. The difference between "Standard" and "QB" kits for the RV's was (at the time I built) around $5,000USD - it's now about $9,000 - and it is worth every cent of that differential. The Phillipines guys doing it do it day in, day out, and do a very good job. The simple fact is Van's couldn't expand at the rate they needed. The RV's are very popular kits - witness the 18month-2 year lead time for the QB kits before Covid came along. Word of mouth is a very powerful selling agent and the RV's perform pretty much exactly as the brochure says, so the word went out.
Vans has traditionally punched their kits, including to final-size on the later ones. But with the growth in business, they couldn't get enough throughput, fast enough, so they contracted with a third party to laser-cut some parts. For whatever reason, this provider modified the toolpath for the laser such that it resulted in slightly out holes, as well as spatter on the parts, as well as the aluminium now becoming prone to cracking while riveting due to the heat-affected zone caused by the laser. Now, the occasional bad rivet is acceptable - I have a half dozen flying in my RV now that'd I'd probably goober-up trying to fix so I leave them there as a reminder that I built this in my back shed - but builders were finding a lot of small cracks in a lot of rivets and they weren't happy campers, and rightfully so. Until this issue, no one knew Vans was laser-cutting parts.
What's got me stuffed in this whole thing is not that Vans did it, I can certainly understand why they did! But that they have apparently zero recourse against the two companies involved - for the bad toolpaths at least (probably not so much for the cracking from the laser as that's something Vans' should have detected earlier) but especially the primer issue. That's something I would have thought either the supplier would have to make good on, or their insurer.