The reason NVIDIA is making lame excuses is they don't have a processor, so couldn't hope to match AMD in price at the same performance.
You don't have a certain number of engineers, unless you don't have a HR department. You can actually hire people if your business grows, so your number can go up. Obviously, there's some a learning curve, but you generally have a decent amount of time with these things.
NVIDIA lost because they couldn't do it cost-effectively, not because they didn't want it. Getting consoles working with your technology can only help ports to PCs. Plus, more development tools for using the GPU in more types of apps.
This is just NVIDIA being NVIDIA. Lame, deficient, and making excuses.