The argument is about whether forcing open channel reseller participation is beneficial to consumers. This was done with the American car franchise dealership, which was legally enforced across most states to protect dealers from being competed with by direct sales, and also to prevent pricing and quality shenanigans with repairs in the old days when cars needed constant repairs and there were more car companies that might pull out of a market and leave consumers without a proper repair facility .
But this model has been falling apart from a consumer POV who largely prefer direct sales and repairs these days (see Tesla), and direct sales largely save the customers money (the $ of vehicles is higher with a dealership model).
I suspect folks need to be careful what they wish for. The 30% cut (or near it) will almost certainly be retained in an open store model if the store isn’t otherwise subsidized.