"modifying standard connectors to remove your choices" - I'd argue they did it for performance issues, not some conspiracy to get you to buy their adapters. Modifying things to suit a different purpose is engineering.
"charging you more for that is evil." - You charge what your customers will pay, not what it costs you to produce. It's a business, not a charity.
Take emotion out of it and just look at the facts.
Claiming something vaguely true may be marketing. Claiming something incorrect and calling it marketing is at least dodgy.
Definitely agree with you on your marketing point. If it can be proven incorrect then it's not ok (nor is it legal). I think they use the word "revolutionary" in place of the old go-to "best". Everyone can say they're the best because it can't be proven wrong. It's subjective. Take, for example, a smartphone screen. Objective observations can be made about the screen size, but personal preference makes "best" subjective.
The article clearly says it's the same connector that's just modified. How can modifying just a connector affect performance? You are free to support Apple, as long as you have the facts straight.