The problem comes with the higher power to weight ratios of the 3D planes (I assume your flying 3D since you are talking about a DA85). There is no way I could land my yak at anything above 1/4 throttle, without doing damage to the airfame. And no, my yak is not overpowered for a 3D plane, it will hover at about 2/3 throttle.

If I were to have the throttle servo/linkage fail, I have the choice where/when to kill the engine so a controlled landing can be made with no damage to the airframe or the prop for that matter.

And you really don't have a choice it the matter, the plane will come down sometime. I just like to be able to choose when/how that happens.