call-timed! doesn't return nil

[luminusian]

The documentation at http://docs.paralleluniverse.co/pulsar/ says,

There’s also a timed version of call!, which gives up and returns nil if the timeout expires.

However,

(actors/call-timed! (actors/spawn (actors/gen-server (reify actors/Server
                                                       (init [_])
                                                       (handle-call [_ _ _ _]
                                                         (Strand/sleep 2)
                                                         :a)))) 1 :ms :b)
CompilerException java.util.concurrent.TimeoutException

[pron]

You're right, but the tests assume an exception. Which makes more sense to you and why?