Earlier quoted context omitted.
Will work just fine. On a touch device you use your finger to move the mouse, what would be the problem?
No it won’t. Touch events being transformed into click events means that a finger touch and swipe will be translated into a clic & drag. How do you differentiate click & drag from hover & move?
Hover & move events: mouse over -> mouse move
Since that website does not take mouse down into consideration (taking no action), then yes, 'click & drag' would work perfectly well.