Clock Management Idea for last minute drives - Great Idea or Too Risky?

Every time I see a football game where a team needs to drive 60+ yards with under a minute left and zero timeouts, the other team resorts to "prevent" or gives the offense easy down-the-middle throws or runs because the clock will run if they don't get out of bounds.

Many times, in order to get a big chuck of yards, they will throw a intermediate pass in the middle of the field, with a receiver unsuccessfully trying to make it out of bounds.

My question is, why wouldn't the coaches teach their players to throw the ball out of bounds (as a lateral), when they know it's not possible to get to the sidelines? I guess limit it to the guys you trust to do this, but what's the point of running when you can beam a lateral pass backwards 2-3 yards out of bounds to stop the clock? Also you don't need to hurry to the line or worry about spiking the next play.

In my head it makes sense, it could be stupid, but if it is dumb, I just want to know why.

I know it's hard to paint the picture of this, but just pretend a receiver just caught a 20 yard pass and is running horizontally to try to make it to the sideline, why not just throw it as a lateral backwards and make it a 15 yard gain and stop the clock quickly?

If this can be done, do you see this ever happening as a normal part of the 2 minute drill (at end of games) when no timeouts are available?