Why do manufacturer's do a poor job with hitch finishes?

Was underneath my 2017 Transit and saw that the powder count on the factory receiver was bubbling with visible rust spots. I scraped off the loose bits and hit it POR-15. The powder coat quality is similar to that on my little Harbor Freight trailer.

A friend’s Acura MDX receiver is completely rusting away.

Why so bad?

Illustration for article titled Why do manufacturers do a poor job with hitch finishes?
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