I can't help but see parallels between Mayvenn and Uber. Will the next we hear about Mayvenn be its investments in lab-grown hair the way that Uber is heavily investing in driverless vehicles?
It also seems clumsy how they appear to mention that a venture capitalist can earn disproportionally more than a hair stylist and that they unfortunately can only improve that by a little amount. The truth is, of course, that they have mainly invested into Mayvenn because it's a $5B/year market and yet another gap between massively occurring human interactions into which you can squeeze a money-milking machine (cf. Facebook, AirBnB, Ebay …). I can't wait to see these services being distributed, open source and based on the blockchain.
I'm not sure I understand your argument that open-source or the blockchain adds significant value.
If you take the article at its word, the state of the art is a distributed collection of small-time suppliers offering goods for sale without refunds for installation by third-party integrators -- the consumer's stylist.
Mayvenn improves the distribution story by integrating the stylist into the supply chain while providing customer service and inventory at zero risk to the stylists who can't afford to carry inventory themselves.