Propose another large Bitcoin rollback and see how the community reacts. The idea that the longest chain always wins has been a core value in Bitcoin since its inception; the manual rollback was a complete violation of that.
It was also necessary for success, but the Bitcoin community has little grounds for moral superiority here.
>Bitcoin people will object and say that was a bug with the blockchain itself. However, sample code on ethereum.org had vulnerabilities similar to TheDAO's bug, so arguably it was a platform issue on Ethereum as well.
I think the main difference here was that bitcoin never had a "code is law" belief, whereas ethereum did.