Tons of people "said it did".
It's a BS argument they use all the time. "Language X is turing complete, so you can build Y language's abstractions there too, so I don't see the need for Y".
Matter of fact, it's the very BS argument that started this sub-thread.
"But once you stray from awk's niche, things start to get awkward, and the further you go, the tougher it gets."
It is important to understand the distinction between possibility and feasibility. Or the difference between theory and practice, if you will. Even though they are opposites, both are important at the same time.
While it's not feasible for humans to move Mt. Everest, it certainly would be possible.