power of the Ethereum blockchain to allow for a fully decentralized network that can never be hacked
into, taken down, or censored
... but ethereum was hacked, taken down via spam attacks and accidental forks oh and that broken softfork , and the etheruem foundation with full centralized control over eth did censor stuff on it when it disliked the way someone used an app.
umm... this is awkward.
Yes, the Ethereum network was attacked, I wouldn't necessarily consider it hacked ("since nothing was compromised") or taken down. Sure, this triggered a soft fork, but in what way did this have a huge effect on DApps? DApps still functioned on whatever forks happen, and the data of smart contracts remained immutable. Are too many forks a bad thing? Yes, but I don't see them being a threat to the robustness of the network. Not to mention there are plenty of fixes the Ethereum foundation is working to address these attack vectors (e.g. Casper).
In the case of the attack against DAO, the Ethereum network still functioned (
https://blog.ethereum.org/2016/06/17/critical-update-re-dao-vulnerability/). There will always be some vulnerability in how code is written, the immutability of the blockchain is quite solid.
Until there is news that smart contracts themselves can be compromised, regardless of the soundness of the code, then I would agree with you that "never can be taken down" is the wrong phrase to use.