I would say that is reasonable, although I would consider the chances of damage reduced due to the shorter drop and the carpet on the floor. I'm not sure where you are going with all this but, it just seems common sense. If you are making a point of putting some protection on the N4, I would agree. Some prefer not to, but that is the risk they take.
I find that exploring the similarities in people's viewpoints can be useful sometimes. In some cases, people actually agree on almost everything, and the one or two areas of disagreement turn out to be pretty minor.
Going back to our previous line of thinking, we have established that a 2-foot drop may result in damage to an unprotected Nexus 4, but we expect the damage to be minor, not severe. If the fall was shorter than 2 feet, I think most people would expect the damage to be even less.
So, is there a point below 2 feet where it is reasonable to expect no damage to an unprotected Nexus 4?