For a certain section of the gaming community, touch-screen games are a confusing and alarming thing. "No buttons! No sticks! What devilry be this?" they cry, in Vincent Price voices. Battle lines are drawn. Everything over there can't possibly be a proper game, because proper games have complex controls you can press and feel, not just simple taps and swipes.
This in turn leads to a lot of wasted time and energy as developers try to cater to this audience by making 'proper games' for touch-screen devices.