Tezos is promising in it's design but the problem is likely the cost of development. Think about it this way, if it's not easy to develop for then you end up paying more for the same code you could get for much cheaper on Ethereum, EOS, or Tauchain. Tauchain will have the competitive advantage over all of them in terms of development cost but Tauchain hasn't arrived yet. EOS will likely arrive first and also have a network effect to work with, and given enough time developers will learn to develop for EOS, but Tezos launches at the same time as EOS, and if a developer like myself has to look at each one and figure out which one is the one I can immediately code someting up? It might turn out that EOS is more developer friendly.

So it's about who wins the developer and who has the most dedicated stakeholders. Tauchain and Tezos are new kids on the block in terms of the community building bizdev side. It takes years to build a community, even when you have something potentially viral like Steemit. Tezos as it looks now seems to be nice for cypherpunks and hackers who know functional programming but it's not going to bring in the sort of every day people you see on Steemit or even Ethereum.