What is he going to say? Amazon is letting a business dispute worsen the customer experience. Bezos has said that their job is to make the best customer experience possible, and if they did, that everything else would work itself out. Apparently, this dispute is worth dismissing that vision.
"When we negotiate with suppliers, we are doing so on behalf of customers. Negotiating for acceptable terms is an essential business practice that is critical to keeping service and value high for customers in the medium and long term." is the relevant quote for how it's not killing customer experience.
The short term customer experience is indeed impacted, but in the long run, I'd rather have more reasonably priced ebooks.
Of course, this is Amazon so they're not going to just say "yup, we're doing this out of greed, screw the customer". It's up to you if you believe what they did say or not.