Ethereum is much more than just simple smart contracts.
I think you are doing better not to compare your project with them everytime.
But I have a question. Besides Burst, are there other coins interested in implementing your AT? Some serious projects like NXT, etc. etc.?
ATs are also much more. It might be the "engine" that provides smart contract functionality, but also can close the gap between these different platforms, giving them a way to communicate through ATs. It can be the link of a larger cryptosystem with multiple different platforms in it.