I choose not to vote, because either of the two options are at opposite extremes.
However, I will voice my opinion.
I think the general idea is great, but the thought is poorly executed. I find it rather common to misclick and have my mouse shift upon this sheet of paper its gliding on, in which I may execute such an action and cause an app to be removed from the dock accidently. Considering I have avg. accuracy with my mouse anyways, and speaking from someone with poor kinetic skills, this idea may not suit everyone. I feel this particular operation works best for those with appropriate accuracy and precision with their mouse.