That is about something different: it is about packaging the whole Java app + the MOE runtime into a single shared library to be used in a native iOS app. It is not about cross-platform libraries.
I assumed that you wanted to create a Java library that you wanted to use on Android and iOS. This is possible with MOE. Is this what you need?
About the linked feature:
The dynamic framework, supported by RoboVM is not possible, but it is also a bad design (I described in the linked forum), because if you want to use 2 java libraries that were packaged into such frameworks, the 2 VMs could clash at runtime.
MOE supports a better solution, starting with MOE 1.3. You can take any Xcode project, and add MOE to it as an extension very similar to how you can add CocoaPods to any Xcode project. Then you can add any number of Java libraries to MOE, and those will be compiled into a single binary, using a single VM into your iOS app.
PS: I just saw that @pkirill already answered, but I am going to post anyway