I think I must remind you of some rules in Option Chess. In a double move, if you move two different pieces, only the second move can involve a capture or a check. If you move a single piece twice, none of these moves can be a capture and only the second one can be a check. With these restrictions, captures are not greatly increased. A lot of double moves would therefore be preparatory rather than predatory.
Ah, now it sounds even better!
Isn't it very boring every single GM game ending up being a draw?
Yeah dull as anything. The world champion never loses a game anymore, it's too easy for him.