Almost every B2C company I've worked at, I've written or had my devs write proxies for whatever trackers we use. The reality is that every company to whom this data matters to figure out their business model will proxy their trackers. If they don't they need to fire their lead engineers.
It's actually pretty easy to disguise this traffic even to the point where you can use the originating server/cdn to interleave the tracking with the content source.
Most companies are incapable of actually building something this techical.
CHIPS was always going to be a giveaway for nothing. It reminds me of that FoxConn CEO's quote about the fact that the US could pay them to fab in America but nothing would actually come of it. Then they just dropped that $10B Wisconsin project as soon as possible.
That was under Trump. Biden literally saw this and doubled down thinking that TSMC would roll over.
After 15 years in the industry, I don't actually hate cargo cult programming anymore. Cargo cult programing is a useful tool to deal with the industry. Junior devs are going to join a cult, you want them in your cult, and you want your cult to have clear rules. If they want to know why the gods rain cargo, they'll ask. At one point you don't have any real control over hiring even as a Lead, EM, etc, because in larger companies saying "no" often doesn't matter when hiring has been dragging on too long. They need to fill seats for deadlines they decided without you anyway.
As a tech leader with standards, you either need to be in a wonderful company or you need to have a wonderful cult.
It's not about serving assets it's about hiding telemetry from adblockers, dns filters, ip lists, etc.