The difference is that this article is an advertisement for the app they're selling.
Also, Howard has been blogging about the Mac and making free apps available for many years. He's not suddenly going to pivot.
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Jonathan Levin is far more careful about verifying what he writes.
The „business model” you are speculating about is second in its insanity only to making MIT-or-more-permissive open source software with an expectation that a multibillion corporation picking it up for its own use will share profits with the author in a sudden ethic attack.