Chainlink used to have the first mover advantage when it comes to oracles, but now we have Iota's Qubic, Aeternity, Mobius and many others that tackle the same problem, but they have larger teams and more funding. Chainlink was so damn conservative with their capital from the Ico of $32M, they only hired a couple of devs. I guess the thinking was that if Chainlink doesn't work out they would still have enough of that Ico funding left for themselves, after the project is abandoned. Sergey, the founder, previously worked on two other projects, Cryptamail and secure asset exchange, both of which were abandoned. I wouldn't be surprised if the same thing happened to Chainlink. The price movement also shows that many Investors lose confidence. If you really want to invest in oracles, check out Mobius. They've recently updated their roadmap, unlike Link, which doesn't even have a roadmap, or any sort of communication.