This isn't the doing of AMD. Nvidia not supporting something that is going to be standard on most if not all monitors going forward would be an epic failing on the part of Nvidia.
What the pro-GSync supporters still can't get through their head is that because FreeSync is an industry open standard that any monitor controller maker can use, and as long as the graphics card, the monitor and the software/firmware all meet the minimum required spec for FreeSync, it will work on whichever vendor's GPU and monitor you choose. Let that sink in for a second.
Since it is cheaper to implement FreeSync than a GSync module, FreeSync resolves the module overheating issue as was found in some ROG monitors, gives you manual control over VSync above a certain refresh rate unlike GSync, can readily work in laptops since no cumbersome module is required, and is mono-directional thus getting you lower latency, there is no logical reason at all to cheer for GSync unless reviewers prove that GSync is scientifically superior. Based on observation of nearly every review site which has reported on FreeSync, not one reputable reporter has said that GSync appears to be superior in person.
By supporting GSync we are actually delaying market adoption, introducing higher costs, limiting our monitor choices since vendors have been slow to adopt this closed priprietary standard. All NV needs to do is support FreeSync and if they truly think GSync is better, support that too! Why is it so difficult for some to grasp this simple concept that if a GPU supports FreeSync and GSync, you have options but supporting vendor locked standard right off the bat (GSync) is only hurting the adoption of an industry open standard and limiting choices.
Those who have NV GPUs and already purchased a GSync monitor, you can keep enjoying it. No one is forcing you to buy an AMD card or a FreeSync capable monitor. For the rest of us, it would be a God send to choose from various brands, various types of TN, IPS, VA panels and 60, 120, 144HZ refresh rates, all of which is what will happen because open standards force more competition.
Not only that but Asus 1440p 120Hz IPS A-Sync monitor at $599 already proves that FreeSync is cheaper. The only 2 situations I can think of why anyone would continue to viciously oppose FreeSync becoming an Intel/AMD/NV open standard is either an NV shareholder or a blind NV loyalist. Think about the 60%+ of GPU users in the world using Intel, some of whom could play WoW, LoL, SC2, Dota 2, etc. and have adaptive sync courtesy of the industry standard FreeSync. This simply cannot be achieved with GSync, essentially segregating more than 80% of all GPUs by excluding AMD and Intel GPUs.
Given the slow trickling of GSync monitors, and most of those having unimpressive screens, it is obvious that the majority of the market is either not impressed by the overall quality of available GSync monitors, they think the pricing premium is too high, or they are making a concious decision to not support vendor lock and are waiting for the market to decide.
This strawman argument that only AMD cards support FreeSync now so they are also vendor locked is ONLY true because some people keep buying GSync, thus effectively promoting the closed priprietary standard. If no one bought GSync, then NV would have no choice but to adopt FreeSync. Of course Intel would also adopt it since they can't use GSync. We would end up with either FreeSync or with FreeSync + GSync options, in both cases allowing any GPU to benefit from any adaptive sync monitor --- that's 100% better than market segregation forcing one to choose which GPU to pair with which monitor -- that is unless one is an NV employee, NV shareholder or is an NV loyalist and hates all things AMD.