The “Jeff Bezos the saved Expanse” narrative was a corporate advertisement that was subsequently peddled endlessly on reddit. The fact is that there was a very passionate and dedicated “Save the Expanse” fan campaign behind it including pitching it to Amazon Studios, who then made a business decision to finance the show’s continuation. The studio representative did make a off-handed comment that “Bezos likes the books” to the press but at the end of the day, it was a business decision based on profit.

Besides, how much do you think Bezos love the books when Amazon didn’t even bother to finance the TV adaptation of the last three books? They got a 3-season deal and didn’t get renewed (Season 6 was barely advertised at all compared to other shows like The Boys), and now Amazon owns the show’s airing rights (but not the IP, which remains in the hands of the producer Alcon) so they have to wait until it expires at some point.