I didn't say google banned templates, you quoted me yourself, and the quote states exactly what you're saying, that template metaprogramming is recommended to be avoided.
Go isn't against generics, they are open to discussion about adding them if right approach to implement them without adding much of extra complexity would be found. Generics do add complexity, it is bearable in most cases, especially given the benefits, but it still exists.
Authors don't want to end up with something that C++ has, where you have to manually limit yourself in order for your code to not be too complex and unmaintainable, at the same moment, adding templates just to have them won't add any immediate benefit of large magnitude.
Go isn't against generics, they are open to discussion about adding them if right approach to implement them without adding much of extra complexity would be found. Generics do add complexity, it is bearable in most cases, especially given the benefits, but it still exists.
Authors don't want to end up with something that C++ has, where you have to manually limit yourself in order for your code to not be too complex and unmaintainable, at the same moment, adding templates just to have them won't add any immediate benefit of large magnitude.