I honestly find this attitude fascinating. A Technology that exists since- 5 years, and yet, expertise is demanded, as if these exchanges could attract and hire the experts of banks.
A bitcoin exchange really isn't all that different from a metals exchange, if you substitute "physical delivery of gold" for "emit an actual on chain bitcoin transaction".
If cryptocoin startups can't recruit the right talent, then I think that's a strong indicator of their fundamental business value.