adding premoves to daily?

I know we already have conditional moves, but premoves would be "if possible, make this move." So, if you have M1, you don't need to conditional all his possible moves. You can just premove it. 

but that's basically conditional moves

Conditional  moves with no condition on what the opponent plays

There are so many possible moves for black, but no matter what they play, Qg7 is mate

True, but it's just tedious in positions like this.

in IRL daily there's no "conditional" moves

I am reminded of a postal game a friend played (as White) decades ago.

It went

1 e4 b6 (if any Bb7)

2 Ba6 Bb7 (locked in)

3 Bxb7 resign

Your example is not quite the same because the opponent doesn't know the move.  However, the existence of such moves may cause some strange games with players executing very suboptimal defenses that will work against obvious premoves.

It would obviously be a bad idea to premove where the opponent has a chance to be dirty, but in the position I showed, there is no chance for the opponent. No matter what, Qg7 is mate.

That would be considered an any conditional move. It has been requested multiple times through the years.