In order to understand what will be discussed below, read through the mini-splint for use Falloff maps Reflect slot . In particular, pay attention to the fact how the adulteration or mixing Fresnel reflections from the mirror images. Just try to get to the core Fresnel reflections, there are also described. So you will be easier to understand what is happening in your scene.
Your first rendering, with the Fresnel reflections, in the properties of the material, clearly shows the dependence of reflection intensity on the angle at which we see on the surface.
When Fresnel reflections, than we perpendicular to the surface, the intensity of its reflections below, and vice versa, than in parallel, the reflection intensity.
In a scene, it suffices to apply the same mat on stoleshku whose surface is to be almost parallel to our eyes, you immediately see its reflection. In fact the same applies to the side wall of the furniture unit, which is also pretty well reflects, in contrast to almost frontally looking at the facades of us.
On the second renderer, you applied fallof card, which at current settings, the lower the color slot is responsible for the Fresnel reflection, and the top, with the specular reflections. Make the top slot of the color black, and you learn the same rendering as in the first case with an activated Fresnel reflections in the mat and light color Reflect.
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