There are actual real solutions to this. Just look to the older cultures that ate lots of beans.

In many parts of Africa the ultimate solution is to peal the skins off the beans. This removes all digestive issues with bean consumption but it's a lot of work.

Another solution is to uses the microbe Aspergillus by consuming Miso paste with the beans which help break down indigestible polysaccharides.

In regards to the first method, are you saying that the skins of beans are the majority source of undigestible sugars in beans?

<edit> actually, come to think of it, fiber is also a source of gas. Are the skins of beans the higher source of fiber?