No it doesn't, especially not when Intel will be on 10nm (likely delayed as well) as perf/$ also matters, quite a lot in fact. If they can deliver ~80% of Xeon E7's perf at a similar TDP, probably ~90% as efficient, whilst costing only ~60% as much I believe they will have a winner with Zen. The Intel server margins are egregious & small & medium sized firms would like to avoid that price premium upfront as & when they upgrade their systems.
You think it's easy to maintain profitability when you're essentially paying double for hardware that could cost far less when bought from another competitor, AMD in this case ? The likes of FB, Google, Twitter, MS, Amazon don't care much about the cost of their hardware because they have an even higher margin (being software/services firm) than Intel & with the truckload of server farms they have efficiency is paramount to their cause, as for the rest they can certainly do with something ~10% less efficient but costing only two thirds