Yes and no. While Salamence's presence provides a stiff competition for all dragons in UU, offensively and defensively, however it M-ampharos is a great pivot by providing support from both sides of the spectrum. Personally I cant wait to go home and test a Hyper offensive dragon team.
Yeah I'm not denying that it's a good pivot. If I recall correctly (it was super late this morning), EonX (or someone else who made a good point bout sheep) was talking about the Physically Defensive set. Going straight-up defensive imo is not as effective as the pre-Salamence era. The pivot set functions perfectly fine.