  In this communication we argue that the Vortex Lattice Melting scenario fails
to explain several key experimental results published in the literature. From a
careful analysis of these results we conclude that the Flux Line Lattice (FLL)
does not melt along a material- and sample-dependent boundary $H_j(T)$ but the
opposite, it de-couples from the superconducting matrix becoming more ordered.
When the FLL depinning is sharp, the difference between the equilibrium
magnetization $M_{eq}(T,H)$ of the pinned and unpinned FLL leads to the
observed step-like change $\Delta M_{eq}(T,H)$. We demonstrate that the
experimentally obtained $\Delta M_{eq}(T,H)$ can be well accounted for by a
variation of the pinning efficiency of vortices along the $H_j(T)$ boundary.
