Maybe the entire Manifest V3 concept is "Gish Gallop" applied to software design. Create so much of a bag of questionable features that people are just trying to keep up with the nonsense, and hopefully it keeps us divided and unable to actually able to mount a solid response to their (not really buried) real goal, which is to stab at the ad-blocker industry.
It would be interesting to consider their business values on proxies too; while on the abstract level, it dilutes tracking data quality (I don't really live inside a data centre in Stockholm?!), it might improve the value of their more broadly aggregated data (we've seen this user's fingerprint elsewhere, so we can give you a more accurate location than Geo-IP lookup does)