They do.
I was presenting very shortened and simplified version of a full argument for simplicity, I do not care about making me an example of something without asking for clarification first.
The physical media cannot be a chokepoint. WotC is currently trying to turn D&DBeyond into a CHokepoint - hence their attempt that making it a marketplace where you can buy both main and third party content, but also testing place where you can rate playtest material and a place where you have access to your sheet, books AND new VTT software. Hence why the only thing to scare them during OGL debacle was people massively leaving D&DBeyond. Even their latest behavior is consistent with the actions of established chokepoint - albeit fired prematurely. It's all building towards make D&DBeyond a necessary tool for interacting with the game, which is why it is pushed as such default even in their own adds they show people putting away books and dice while at one table, to use D&DBeyond instead. Once they control the means through which us, the customers, interact with the producers of goods (MCDM, Kobold Press, Ghostfire Gaming), they can do things like force changes into which books you are using (hence why attempt to replace old spells with new was "firing prematurely" - they haven't yet caught enough fish into the net to comfortably pull such trick), ramp up the prices, start taking bigger cuts from 3rd party book sales etc. They won't have a monopoly (DriveThruRpg is already a similiar chokepoint, but even then WotC has their hand in that one through DMs Guild, ditto for Paradox and Storyteller's Vault and Paizo and Pathfinder Infinite). This thing is very deliberately built to control the way you play and ensure it is done in a way that allows WotC to squeze every last drop of blood from you.