What I get from that article:
1. Bad car analogy.
2. AT&T is greedy. (duh)
3. Anyone with a non-LTE phone who uses less than the cap/throttle point per month, will actually benefit by increased throughput, without the carrier needing to spend any money. (Facebook/Twitter/e-mail loads faster, etc.)
4. LTE users get screwed. (See #2)
This doesn't have anything to do with Boost, really. We're getting throttled because Sprint's postpaid customers coughing up twice as much per month are getting crappy EVDO speeds. That's all there really is to it.