I would say that the thriving of the (mechanical) keyboard community is exactly a counterexample of the problem you pose. There's clearly a sizeable and well funded market segment for all kinds of keyboards, both traditional and unorthodox.
The overwhelming majority of people I have talked to aren't interested in using a non-standard keyboard design, even if they are interested in the ergonomic benefits.
There are definitely a lot of us who want more esoteric designs, but we are a relative minority.