"Purpose" and "hope" (hell let's through "telos" in there) are inherently subjective terms. Conflating this with empirical observation of effect is simply not useful outside of certain political situations where you intentionally want to disregard intent. It's asinine unless accompanied with persuasion that intent is working against collective interests.

In most situations disregarding intent is not useful for getting things done unless you have unilateral power to override intent.

A better explanation is that John Deere, like the massive truck corporations that make pickups, was happy to take advantage of blatant loopholes.