doctorbadwolf
Heretic of The Seventh Circle
Sure, but cunning action is a really fun ability that sets rogues apart, and should be available for part of a feat, IMO.The monk gets dash, dodge, disengage as a bonus action as well, though they have to spend a ki for it, so there is precedent for it to be a martial thing. Besides, if your using your bonus action for this, you're not using it for off-hand attacks or other actions.
<edit> and Swashbucklers are rogue subclass, so it's not out of place for fencing in the first place.