Swipe gestures are a pain with a mouse, because you need to move the mouse to the right spot, click, drag in the opposite direction and then release, requiring a non-trivial amount of effort; and it just feels wrong when you're expected to do so regularly because you know there has to be a better way (like the way it used to work). Decades of desktop UI design focused on "discoverability" also mean that an unindicated need for a swipe gesture in order to access core functionality is frustratingly non-obvious to people experienced with classic desktop interfaces, and these will tend to be people whose advice is requested in purchasing decisions.

Swiping is awesomely natural on a touchscreen, but obviously sub-optimal otherwise. Reliance on a swipe gesture should be avoided in UI design for a mouse/touchpad and keyboard environment, in favor of buttons and menus, and mouse wheel/two-fingered scroll support.