Great point (I’m the Zach Shefska referenced in the article), and have been working in this space to advocate for consumers. Two things:

1) new FTC proposed rules (which are open for public comment!) would ban the practice of “surprise” add-ons at the dealership.

2) a lot of folks that contribute to markups (and other crowdsourced initiatives) go all the way to getting a buyers order and then report those add-ons when they show up then.

If you’re interested in the FTC rules, read here: https://joinyaa.com/guides/ftc-dealer-rules/