You are telling me the publishers are irrational and will make decisions that make themselves less profit on a sale. I do not know these companies, but I find that hard to believe.
You must realize that selling an e-license for full price is much less than a print copy plus say 2 dollars for an e-license. It would be irrational and self destructive to their bottom line profit to not offer a bundle option with the sales model I mentioned. If the are greedy and want money, they will do what I suggested. If they want less money or ate really as stupid as you claim then maybe they won't, bug I doubt that. I think they just need to be given the idea by the retailer and authors.