Discussion of paper by M. Staropoli, A. Raba, C. H. Hovelmann, M.-S. Appavou, J. Allgaier, M. Krutyeva, W. Pyckhout-Hintzen, A. Wischnewski, and D. Richter, entitled 'Melt dynamics of supramolecular comb polymers: Viscoelastic and dielectric response'