I have a very similar view, the market is there but it's not all that huge. Most of crypto developers already know a thing or two about programming, they don't need many workers and usually, freelancers are still looking for fiats rather than cryptocurrency.
There is also a question of taxation during exchange, it's an additional game stopper. Some minor swing have already had happen, all the freelancing in this crypto-era resembles evolution, gradual progress instead of revolution and I think that's quite OK.
I said that the crypto-freelancers market isn't huge, in fact I think it is actually tiny. There are a lot of people willing to do some work for crypto but the amount of employers is still very small. I'm offering cheap websites creation service but so far, I got only one customer... it won't change any time soon. There's just not enough demand.