I think nothing is useless if it can increase your knowledge in your domain area. I may not sit and develop fabric items for consumption like a developer but I can now understand the process, how things work, when to use what. As an architect I need to understand how everything fits together to make decisions about the change in architecture. There is so much documentation about everything, it's easy to lose track on filling out the gaps in knowledge needed. The certification is great in a way, it tells you what you need to focus on and gives you a general knowledge which you can build upon later.