Wow, people love to bitch and moan don't they.
I don't see what's misleading here. If you buy an iPad that has T-Mo LTE built in, you get 200Mb of data every month for free. That's clear and simple. That's what the T-Mo man said, that's what it says on the Apple website.
If you can't really afford to buy an iPad and you want to finance it through T-Mobile, there are terms and conditions that go along with that. You don't have to use T-Mo as a bank. You could go to your own bank, you could use a credit card, you could use Apple's credit card and get iTunes credit with every purchase, you could even (shock!) save up some cash and buy the item when you can afford it.
There are two separate deals being offered by T-Mo here and MacRumors would do well to stop conflating them.
Wow, how about you take that monocle out for a second, tell your butler to give you a couple of minutes, and maybe read this tweet. https://twitter.com/JohnLegere/status/396402959853953024
You don't possibly see how this could have been interpreted otherwise? It's not misleading? Really?