I think this feature is not considered by makers because it is a feature that, if inadvertently activated, will ruin a roll without the photographer knowing and probably without even understanding why.
Never underestimate the ability of the user to not read the instruction manual or to not understand it. The reputation of the camera maker might suffer, and the feature would probably not drive many sales in any case. Timed sequences require substantially a tripod and most compact cameras don't even have the tripod "screw".
I said pro cameras... I'm talking about users who wouldn't suffer from those misunderstandings because they are real photographers.