I don't consider that verbose at all. It expresses a great deal more information than you're giving it credit. It would not be easy to pare down without destroying this information. Thus, it is very close to the minimum expression of the intended idea.
One mans verbosity is another's great literary detail.
The same is true for programming languages, the fact some languages make you two say 2 lines, to achieve what another language does with one, can itself be a benefit or not. It might force the developer to make the same mistake twice, otherwise resulting in a compiler error. Or it might allow extra space for a mistake to creep in.
It is the perspective of the users and the context that determine if something is right or not. This project has apparently 14,000 classes, with about 3,500,000 lines of code. It is verbose, but it is also very manageable. A smaller more 'intelligent' less static language would make working with this a lot harder.