Smart contracts are designed and implemented within blockchains, and therefore they inherit some of the blockchain's properties: They're immutable, which means a smart contract can never be changed and no one can tamper with or break a contract.
Steem-engine is not a side-chain, they even do not use smart contracts.
What awareness you express about fraudulent misrepresentation, negligent misrepresentation or innocent misrepresentation in regards to the accuracy of any representations of fact that may lead to the latter party to enter a "smart" contract with you?
Your "smart" contracts are stored in a database not on the blockchain and your "smart" contracts can change on the fly, when you see fit without consent of the latter party that entered a "smart"contract with you.
I am very disappointed.
RE: On the "imminent death" of Steem-Engine // "overpriced tokens" of steem-engine // and the fate of steem-engine in a post SMT world