The current ML is the comfortable medium between too much articulation (Toybiz) and not enough articulation (McFarlane, even currently) finger articulation is overboard and really makes the figure look bad. Jazzwares is making it work but they are designing the accessories (a word Hasbro is not familiar with) to accommodate them and I don't think they would lose any support of they did away with it altogether. Toe articulation is on par with butterfly articulation. It may help for some figures but not always necessary. I like that they take it as a character based decision such as Beast and Spider-Man. Some people are bugged by the females' lack of double jointed elbows, but I can understand it was a judgment call made on behalf of aesthetics and I can respect that. I personally don't like the way the double joints make the much thinner female arms look and the female figures that do have them are quite flimsy and have a tendency to tear as the thickness of the material of the hinges have to be made much thinner than a male buck. Though cost is the bottom line most of the time, there's still a bit of science and reasoning in most of what Hasbro does, and the concert of putting out product that's more fragile and flimsy and breakable than standard is paramount.
So no, the biggest issue Hasbro has is not the articulation itself but the lack of specific accessories designed to work with the available articulation, and the nitpicking of minor costs to do so is the problem. A prime example is the recent Gamerverse Spider-Men from the Demogoblin wave. One comes with facial webbing, another comes with body webbing. Neither of them is not all that bulky or even that well done. Would it really have been that much trouble or cost to include both accessories with both figures?