If you play on ps4 like i do you have a tochpad which for some reason allows you to use your abilities if you swipe. and if you have big fingers like i do, your probably going to accidentally swipe them and use one of your abilities which can get annoying after sometime so why not just have the ability to disable it some of the controls?
Im not saying to disable the whole touchpad but just have the ability to disable some of it like for example the left swipe.