xwiredtva, you're obviously NOT a film or video editor.
Professional editors are looking for speed and efficiency in both user interfaces, as well as input devices. A touchscreen with no keyboard satisfies neither requirement. When you're editing, you are always invoking and executing various features using dozens of different keyboard shortcut combos at the same time that you are moving the mouse/trackpad/wacom tablet around. Not only is this impractical on a touchscreen (unless your screen is 5 feet wide), it's terrible because there are no tactile cues as to what button youre "pressing".
For the same reasons why guitar players don't/won't playing stringless instruments with a touch-sensitive fretboard, the same goes for video editors.
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