It still disappoints me how people fail to grasp the basic difference between ebook production and print book production.
Print Book content has to be finalized far in advance for proofing, relay of proofing, and finalizing between the creator and the actual facility creating the product. The creation of the printed product, with non-recycled art is more complex, and is going to take longer time. Page Count matters. Some things just can't be included, because sometimes one more half page of material really means you have to add a lot more pages, and a cost increase beyond your desired cost point. Then there is the time for production, shipping, preparation for distribution, distribution, then actual arrival of a product. That is a very significant amount of time. There is a significant difference in time for finalization of ebook product and printed product--so to call it 'Day One DLC'--well, its uncalled for, and ridiculous when you factor in the real differences in speed of ebook to electronic distribution versus the speed of printed book in your store, and the necessary decision to split things between teams due to content limitations for the print product..
Adding some elaborate conspiracy theory to this is just the icing on the cake of annoyance.